100221223031331 has 32 divisors (see below), whose sum is σ = 134307082990080. Its totient is φ = 66475752370944.

The previous prime is 100221223031261. The next prime is 100221223031353. The reversal of 100221223031331 is 133130322122001.

It is not a de Polignac number, because 100221223031331 - 2¹¹ = 100221223029283 is a prime.

It is a super-2 number, since 2×100221223031331² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100221223031431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1169850160 + ... + 1169935826.

It is an arithmetic number, because the mean of its divisors is an integer number (4197096343440).

Almost surely, 2^{100221223031331} is an apocalyptic number.

100221223031331 is a deficient number, since it is larger than the sum of its proper divisors (34085859958749).

100221223031331 is a wasteful number, since it uses less digits than its factorization.

100221223031331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88555.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 100221223031331 its reverse (133130322122001), we get a palindrome (233351545153332).

The spelling of 100221223031331 in words is "one hundred trillion, two hundred twenty-one billion, two hundred twenty-three million, thirty-one thousand, three hundred thirty-one".