The Number

12121

Twelve Thousand One Hundred and Twenty-One

In Base 11 Undecimal Is

911a11

The numbers with a 11 subscript use Base 11 Undecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

12118
911711
Twelve Thousand One Hundred and Eightteen in Base 11 Undecimal
12119
911811
Twelve Thousand One Hundred and Nineteen in Base 11 Undecimal
12120
911911
Twelve Thousand One Hundred and Twenty in Base 11 Undecimal
12122
912011
Twelve Thousand One Hundred and Twenty-Two in Base 11 Undecimal
12123
912111
Twelve Thousand One Hundred and Twenty-Three in Base 11 Undecimal
12124
912211
Twelve Thousand One Hundred and Twenty-Four in Base 11 Undecimal

Scientific Notation

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

1.2121e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00012317a0a82a0418711

The reciprocal of 12121 in Base 11 Undecimal.

Palindrome?

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

The number 911a11 is not a palindrome.

Not A Prime Number

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

Twelve thousand one hundred and twenty-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

Twelve 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 twelve thousand one hundred and twenty-one has the following 3 prime factors:

17
1611
Seventeen in Base 11 Undecimal
23
2111
Twenty-Three in Base 11 Undecimal
31
2911
Thirty-One in Base 11 Undecimal

Prime Factorization

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

16111 · 21111 · 29111 = 911a11

Base Conversions

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