12213312232 has 32 divisors (see below), whose sum is σ = 25063204320. Its totient is φ = 5533410240.

The previous prime is 12213312173. The next prime is 12213312247. The reversal of 12213312232 is 23221331221.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 199023 + ... + 253054.

It is an arithmetic number, because the mean of its divisors is an integer number (783225135).

Almost surely, 2^12213312232 is an apocalyptic number.

It is an amenable number.

12213312232 is an abundant number, since it is smaller than the sum of its proper divisors (12849892088).

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

12213312232 is a wasteful number, since it uses less digits than its factorization.

12213312232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452401 (or 452397 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

Adding to 12213312232 its reverse (23221331221), we get a palindrome (35434643453).

The spelling of 12213312232 in words is "twelve billion, two hundred thirteen million, three hundred twelve thousand, two hundred thirty-two".