12500555123112 has 128 divisors (see below), whose sum is σ = 37597551667200. Its totient is φ = 3383438162688.

The previous prime is 12500555123083. The next prime is 12500555123123. The reversal of 12500555123112 is 21132155500521.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71231218 + ... + 71406494.

It is an arithmetic number, because the mean of its divisors is an integer number (293730872400).

Almost surely, 2^{12500555123112} is an apocalyptic number.

12500555123112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12500555123112 is an abundant number, since it is smaller than the sum of its proper divisors (25096996544088).

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

12500555123112 is a wasteful number, since it uses less digits than its factorization.

12500555123112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197655 (or 197651 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 33.

The spelling of 12500555123112 in words is "twelve trillion, five hundred billion, five hundred fifty-five million, one hundred twenty-three thousand, one hundred twelve".