22331131312 has 20 divisors (see below), whose sum is σ = 49447505296. Its totient is φ = 9570484800.

The previous prime is 22331131307. The next prime is 22331131313. The reversal of 22331131312 is 21313113322.

It is not an unprimeable number, because it can be changed into a prime (22331131313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99692439 + ... + 99692662.

Almost surely, 2^22331131312 is an apocalyptic number.

It is an amenable number.

22331131312 is an abundant number, since it is smaller than the sum of its proper divisors (27116373984).

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

22331131312 is a wasteful number, since it uses less digits than its factorization.

22331131312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199385116 (or 199385110 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

Adding to 22331131312 its reverse (21313113322), we get a palindrome (43644244634).

The spelling of 22331131312 in words is "twenty-two billion, three hundred thirty-one million, one hundred thirty-one thousand, three hundred twelve".