22312012532 has 24 divisors (see below), whose sum is σ = 39180292200. Its totient is φ = 11117681280.

The previous prime is 22312012483. The next prime is 22312012553. The reversal of 22312012532 is 23521021322.

It can be written as a sum of positive squares in 4 ways, for example, as 2064430096 + 20247582436 = 45436^2 + 142294^2 .

It is a super-3 number, since 3×22312012532³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22312012498 and 22312012507.

It is a congruent number.

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, 3286982 + ... + 3293762.

It is an arithmetic number, because the mean of its divisors is an integer number (1632512175).

Almost surely, 2^22312012532 is an apocalyptic number.

It is an amenable number.

22312012532 is a deficient number, since it is larger than the sum of its proper divisors (16868279668).

22312012532 is a wasteful number, since it uses less digits than its factorization.

22312012532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9491 (or 9489 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 22312012532 its reverse (23521021322), we get a palindrome (45833033854).

The spelling of 22312012532 in words is "twenty-two billion, three hundred twelve million, twelve thousand, five hundred thirty-two".