12500124400 has 60 divisors (see below), whose sum is σ = 30843248872. Its totient is φ = 4864907520.

The previous prime is 12500124391. The next prime is 12500124443. The reversal of 12500124400 is 442100521.

It is a super-2 number, since 2×12500124400² (a number of 21 digits) contains 22 as substring.

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, 407502 + ... + 437101.

Almost surely, 2^12500124400 is an apocalyptic number.

12500124400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12500124400 is an abundant number, since it is smaller than the sum of its proper divisors (18343124472).

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

12500124400 is a wasteful number, since it uses less digits than its factorization.

12500124400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844658 (or 844647 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 12500124400 its reverse (442100521), we get a palindrome (12942224921).

It can be divided in two parts, 12500 and 124400, that added together give a square (136900 = 370²).

The spelling of 12500124400 in words is "twelve billion, five hundred million, one hundred twenty-four thousand, four hundred".