12129859272312 has 48 divisors (see below), whose sum is σ = 33091495669440. Its totient is φ = 4013773381248.

The previous prime is 12129859272277. The next prime is 12129859272331. The reversal of 12129859272312 is 21327295892121.

12129859272312 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 9 + 8 + 59 + 272 + 312 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 614845128 + ... + 614864855.

It is an arithmetic number, because the mean of its divisors is an integer number (689406159780).

Almost surely, 2^{12129859272312} is an apocalyptic number.

12129859272312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12129859272312 is an abundant number, since it is smaller than the sum of its proper divisors (20961636397128).

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

12129859272312 is a wasteful number, since it uses less digits than its factorization.

12129859272312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229710132 (or 1229710125 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The spelling of 12129859272312 in words is "twelve trillion, one hundred twenty-nine billion, eight hundred fifty-nine million, two hundred seventy-two thousand, three hundred twelve".