12331313022 has 32 divisors (see below), whose sum is σ = 28189953792. Its totient is φ = 3522720384.

The previous prime is 12331313017. The next prime is 12331313023. The reversal of 12331313022 is 22031313321.

It is a super-2 number, since 2×12331313022² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 12331313022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331313023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345318 + ... + 379350.

It is an arithmetic number, because the mean of its divisors is an integer number (880936056).

Almost surely, 2^12331313022 is an apocalyptic number.

12331313022 is an abundant number, since it is smaller than the sum of its proper divisors (15858640770).

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

12331313022 is a wasteful number, since it uses less digits than its factorization.

12331313022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42672.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12331313022 its reverse (22031313321), we get a palindrome (34362626343).

The spelling of 12331313022 in words is "twelve billion, three hundred thirty-one million, three hundred thirteen thousand, twenty-two".