123112222012 has 24 divisors (see below), whose sum is σ = 232036481600. Its totient is φ = 56816790336.

The previous prime is 123112222007. The next prime is 123112222049. The reversal of 123112222012 is 210222211321.

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, 679789 + ... + 841627.

Almost surely, 2^123112222012 is an apocalyptic number.

It is an amenable number.

123112222012 is a deficient number, since it is larger than the sum of its proper divisors (108924259588).

123112222012 is a wasteful number, since it uses less digits than its factorization.

123112222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176485 (or 176483 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 123112222012 its reverse (210222211321), we get a palindrome (333334433333).

The spelling of 123112222012 in words is "one hundred twenty-three billion, one hundred twelve million, two hundred twenty-two thousand, twelve".