1212365123312 has 40 divisors (see below), whose sum is σ = 2690929852800. Its totient is φ = 518344972992.

The previous prime is 1212365123287. The next prime is 1212365123339. The reversal of 1212365123312 is 2133215632121.

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, 12870362 + ... + 12964217.

It is an arithmetic number, because the mean of its divisors is an integer number (67273246320).

Almost surely, 2^{1212365123312} is an apocalyptic number.

It is an amenable number.

1212365123312 is an abundant number, since it is smaller than the sum of its proper divisors (1478564729488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212365123312 is a wasteful number, since it uses less digits than its factorization.

1212365123312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25835013 (or 25835007 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The spelling of 1212365123312 in words is "one trillion, two hundred twelve billion, three hundred sixty-five million, one hundred twenty-three thousand, three hundred twelve".