The Number

21211

Twenty-One Thousand Two Hundred and Eleven

Nearby Numbers

Positive, nonzero integers within three units

21208
Twenty-One Thousand Two Hundred and Eight
21209
Twenty-One Thousand Two Hundred and Nine
21210
Twenty-One Thousand Two Hundred and Ten
21212
Twenty-One Thousand Two Hundred and Twelve
21213
Twenty-One Thousand Two Hundred and Thirteen
21214
Twenty-One Thousand Two Hundred and Fourteen

Scientific Notation

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

2.1211e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00004714534911131017

The reciprocal of 21211.

Palindrome?

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

The number 21211 is not a palindrome.

A Prime Number

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

Twenty-one thousand two hundred and eleven is the 2385th prime number.   See primes in Base 10 Decimal

Not A Composite

Composites have more than just these two factors.

Twenty-One Thousand Two Hundred and Eleven is not a composite number because it has exactly two factors: One and Twenty-One Thousand Two Hundred and Eleven

Prime Factors

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

The number twenty-one thousand two hundred and eleven has the following 1 prime factor:

21211
Twenty-One Thousand Two Hundred and Eleven

Prime Factorization

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

212111 = 21211

Base Conversions

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