12312022012 has 6 divisors (see below), whose sum is σ = 21546038528. Its totient is φ = 6156011004.

The previous prime is 12312021947. The next prime is 12312022027. The reversal of 12312022012 is 21022021321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1539002748 + ... + 1539002755.

Almost surely, 2^12312022012 is an apocalyptic number.

It is an amenable number.

12312022012 is a deficient number, since it is larger than the sum of its proper divisors (9234016516).

12312022012 is a wasteful number, since it uses less digits than its factorization.

12312022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078005507 (or 3078005505 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12312022012 its reverse (21022021321), we get a palindrome (33334043333).

The spelling of 12312022012 in words is "twelve billion, three hundred twelve million, twenty-two thousand, twelve".