12912192212 has 24 divisors (see below), whose sum is σ = 22726166400. Its totient is φ = 6419049120.

The previous prime is 12912192193. The next prime is 12912192217. The reversal of 12912192212 is 21229121921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12912192217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1285313 + ... + 1295319.

It is an arithmetic number, because the mean of its divisors is an integer number (946923600).

Almost surely, 2^12912192212 is an apocalyptic number.

It is an amenable number.

12912192212 is a deficient number, since it is larger than the sum of its proper divisors (9813974188).

12912192212 is a wasteful number, since it uses less digits than its factorization.

12912192212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11831 (or 11829 counting only the distinct ones).

The product of its digits is 2592, while the sum is 32.

The spelling of 12912192212 in words is "twelve billion, nine hundred twelve million, one hundred ninety-two thousand, two hundred twelve".