22131331230312 has 32 divisors (see below), whose sum is σ = 61475920084800. Its totient is φ = 7377110410032.

The previous prime is 22131331230259. The next prime is 22131331230331. The reversal of 22131331230312 is 21303213313122.

22131331230312 is a `hidden beast` number, since 2 + 2 + 1 + 3 + 1 + 3 + 312 + 30 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51229933188 + ... + 51229933619.

It is an arithmetic number, because the mean of its divisors is an integer number (1921122502650).

Almost surely, 2^{22131331230312} is an apocalyptic number.

It is an amenable number.

22131331230312 is an abundant number, since it is smaller than the sum of its proper divisors (39344588854488).

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

22131331230312 is a wasteful number, since it uses less digits than its factorization.

22131331230312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102459866822 (or 102459866812 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 22131331230312 its reverse (21303213313122), we get a palindrome (43434544543434).

The spelling of 22131331230312 in words is "twenty-two trillion, one hundred thirty-one billion, three hundred thirty-one million, two hundred thirty thousand, three hundred twelve".