12312233212 has 12 divisors (see below), whose sum is σ = 21744082360. Its totient is φ = 6099638256.

The previous prime is 12312233189. The next prime is 12312233239. The reversal of 12312233212 is 21233221321.

It is a congruent number.

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, 14119098 + ... + 14119969.

Almost surely, 2^12312233212 is an apocalyptic number.

It is an amenable number.

12312233212 is a deficient number, since it is larger than the sum of its proper divisors (9431849148).

12312233212 is a wasteful number, since it uses less digits than its factorization.

12312233212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28239180 (or 28239178 counting only the distinct ones).

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

Adding to 12312233212 its reverse (21233221321), we get a palindrome (33545454533).

The spelling of 12312233212 in words is "twelve billion, three hundred twelve million, two hundred thirty-three thousand, two hundred twelve".