12515013212 has 48 divisors (see below), whose sum is σ = 24169622400. Its totient is φ = 5634732480.

The previous prime is 12515013179. The next prime is 12515013227. The reversal of 12515013212 is 21231051521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386339 + ... + 417477.

It is an arithmetic number, because the mean of its divisors is an integer number (503533800).

Almost surely, 2^12515013212 is an apocalyptic number.

It is an amenable number.

12515013212 is a deficient number, since it is larger than the sum of its proper divisors (11654609188).

12515013212 is a wasteful number, since it uses less digits than its factorization.

12515013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31346 (or 31344 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 12515013212 its reverse (21231051521), we get a palindrome (33746064733).

The spelling of 12515013212 in words is "twelve billion, five hundred fifteen million, thirteen thousand, two hundred twelve".