The Number

2121

Two Thousand One Hundred and Twenty-One

Nearby Numbers

Positive, nonzero integers within three units

2118
Two Thousand One Hundred and Eightteen
2119
Two Thousand One Hundred and Nineteen
2120
Two Thousand One Hundred and Twenty
2122
Two Thousand One Hundred and Twenty-Two
2123
Two Thousand One Hundred and Twenty-Three
2124
Two Thousand One Hundred and Twenty-Four

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.

0.0004714757190004715

The reciprocal of 2121.

Palindrome?

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

The number 2121 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 10 Decimal

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
Three
7
Seven
101
One Hundred and One

Prime Factorization

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

31 · 71 · 1011 = 2121

Base Conversions

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