13231222120 has 48 divisors (see below), whose sum is σ = 30478852260. Its totient is φ = 5169378816.

The previous prime is 13231222063. The next prime is 13231222133. The reversal of 13231222120 is 2122213231.

It can be written as a sum of positive squares in 2 ways, for example, as 12288609316 + 942612804 = 110854^2 + 30702^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15489 + ... + 163408.

Almost surely, 2^13231222120 is an apocalyptic number.

13231222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13231222120 is an abundant number, since it is smaller than the sum of its proper divisors (17247630140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13231222120 is a wasteful number, since it uses less digits than its factorization.

13231222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178994 (or 178947 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13231222120 its reverse (2122213231), we get a palindrome (15353435351).

The spelling of 13231222120 in words is "thirteen billion, two hundred thirty-one million, two hundred twenty-two thousand, one hundred twenty".