The Number

221221

Two Hundred and Twenty-One Thousand Two Hundred and Twenty-One

Nearby Numbers

Positive, nonzero integers within three units

221218
Two Hundred and Twenty-One Thousand Two Hundred and Eightteen
221219
Two Hundred and Twenty-One Thousand Two Hundred and Nineteen
221220
Two Hundred and Twenty-One Thousand Two Hundred and Twenty
221222
Two Hundred and Twenty-One Thousand Two Hundred and Twenty-Two
221223
Two Hundred and Twenty-One Thousand Two Hundred and Twenty-Three
221224
Two Hundred and Twenty-One Thousand Two Hundred and Twenty-Four

Scientific Notation

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

2.21221e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000004520366511316738

The reciprocal of 221221.

Palindrome?

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

The number 221221 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 twenty-one is a composite number with 24 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 twenty-one is a composite number with 24 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 twenty-one has the following 4 prime factors:

7
Seven
11
Eleven
13
Thirteen
17
Seventeen

Prime Factorization

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

71 · 111 · 132 · 171 = 221221

Base Conversions

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