The Number

221215

Two Hundred and Twenty-One Thousand Two Hundred and Fifteen

Nearby Numbers

Positive, nonzero integers within three units

221212
Two Hundred and Twenty-One Thousand Two Hundred and Twelve
221213
Two Hundred and Twenty-One Thousand Two Hundred and Thirteen
221214
Two Hundred and Twenty-One Thousand Two Hundred and Fourteen
221216
Two Hundred and Twenty-One Thousand Two Hundred and Sixteen
221217
Two Hundred and Twenty-One Thousand Two Hundred and Seventeen
221218
Two Hundred and Twenty-One Thousand Two Hundred and Eightteen

Scientific Notation

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

2.21215e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000004520489116922451

The reciprocal of 221215.

Palindrome?

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

The number 221215 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 twenty-one thousand two hundred and fifteen 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 hundred and twenty-one thousand two hundred and fifteen 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 hundred and twenty-one thousand two hundred and fifteen has the following 3 prime factors:

5
Five
151
One Hundred and Fifty-One
293
Two Hundred and Ninety-Three

Prime Factorization

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

51 · 1511 · 2931 = 221215

Base Conversions

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