The Number

2121

Two Thousand One Hundred and Twenty-One

In Base 12 Duodecimal Is

128912

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

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

Nearby Numbers

Positive, nonzero integers within three units

2118
128612
Two Thousand One Hundred and Eightteen in Base 12 Duodecimal
2119
128712
Two Thousand One Hundred and Nineteen in Base 12 Duodecimal
2120
128812
Two Thousand One Hundred and Twenty in Base 12 Duodecimal
2122
128a12
Two Thousand One Hundred and Twenty-Two in Base 12 Duodecimal
2123
128b12
Two Thousand One Hundred and Twenty-Three in Base 12 Duodecimal
2124
129012
Two 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.

2.121e3

Reciprocal

A number multiplied with its reciprocal is one.

0.00099399b199631a7412

The reciprocal of 2121 in Base 12 Duodecimal.

Palindrome?

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

The number 128912 is not a palindrome.

Not A Prime Number

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

Two thousand one hundred and twenty-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 12 Duodecimal

A Composite

Composites have more than just these two factors.

Two thousand one hundred and twenty-one is a composite number with 8 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 thousand one hundred and twenty-one has the following 3 prime factors:

3
312
Three in Base 12 Duodecimal
7
712
Seven in Base 12 Duodecimal
101
8512
One Hundred and One in Base 12 Duodecimal

Prime Factorization

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

3121 · 7121 · 85121 = 128912

Base Conversions

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