The Number

212121

Two Hundred and Twelve Thousand One Hundred and Twenty-One

In Base 12 Duodecimal Is

a290912

The numbers with a 12 subscript use Base 12 Duodecimal notation.

For more familiar numbers: See Two Hundred and Twelve Thousand One Hundred and Twenty-One in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

212118
a290612
Two Hundred and Twelve Thousand One Hundred and Eightteen in Base 12 Duodecimal
212119
a290712
Two Hundred and Twelve Thousand One Hundred and Nineteen in Base 12 Duodecimal
212120
a290812
Two Hundred and Twelve Thousand One Hundred and Twenty in Base 12 Duodecimal
212122
a290a12
Two Hundred and Twelve Thousand One Hundred and Twenty-Two in Base 12 Duodecimal
212123
a290b12
Two Hundred and Twelve Thousand One Hundred and Twenty-Three in Base 12 Duodecimal
212124
a291012
Two Hundred and Twelve Thousand One Hundred and Twenty-Four in Base 12 Duodecimal

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

2.12121e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000120b0853005b3212

The reciprocal of 212121 in Base 12 Duodecimal.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number a290912 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Two hundred and twelve thousand one hundred and twenty-one is a composite number with 36 total factors (including 1 and itself).   See primes in Base 12 Duodecimal

A Composite

Composites have more than just these two factors.

Two hundred and twelve thousand one hundred and twenty-one is a composite number with 36 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number two hundred and twelve thousand one hundred and twenty-one has the following 4 prime factors:

3
312
Three in Base 12 Duodecimal
7
712
Seven in Base 12 Duodecimal
13
1112
Thirteen in Base 12 Duodecimal
37
3112
Thirty-Seven in Base 12 Duodecimal

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

3122 · 7122 · 11121 · 31121 = a290912

Base Conversions

The number two hundred and twelve thousand one hundred and twenty-one in 35 different bases