31522822011812 has 12 divisors (see below), whose sum is σ = 55361255029836. Its totient is φ = 15705320574720.

The previous prime is 31522822011809. The next prime is 31522822011823. The reversal of 31522822011812 is 21811022822513.

It can be written as a sum of positive squares in 2 ways, for example, as 12900351990436 + 18622470021376 = 3591706^2 + 4315376^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14022606533 + ... + 14022608780.

It is an arithmetic number, because the mean of its divisors is an integer number (4613437919153).

Almost surely, 2^{31522822011812} is an apocalyptic number.

It is an amenable number.

31522822011812 is a deficient number, since it is larger than the sum of its proper divisors (23838433018024).

31522822011812 is a wasteful number, since it uses less digits than its factorization.

31522822011812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28045215598 (or 28045215596 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The spelling of 31522822011812 in words is "thirty-one trillion, five hundred twenty-two billion, eight hundred twenty-two million, eleven thousand, eight hundred twelve".