12501112125 has 16 divisors (see below), whose sum is σ = 20801851200. Its totient is φ = 6667259600.

The previous prime is 12501112109. The next prime is 12501112133. The reversal of 12501112125 is 52121110521.

It is not a de Polignac number, because 12501112125 - 2⁴ = 12501112109 is a prime.

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, 16667775 + ... + 16668524.

It is an arithmetic number, because the mean of its divisors is an integer number (1300115700).

Almost surely, 2^12501112125 is an apocalyptic number.

12501112125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12501112125 is a deficient number, since it is larger than the sum of its proper divisors (8300739075).

12501112125 is an equidigital number, since it uses as much as digits as its factorization.

12501112125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33336317 (or 33336307 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 21.

Adding to 12501112125 its reverse (52121110521), we get a palindrome (64622222646).

The spelling of 12501112125 in words is "twelve billion, five hundred one million, one hundred twelve thousand, one hundred twenty-five".