125400221231004 has 36 divisors (see below), whose sum is σ = 324715207012560. Its totient is φ = 40780559749440.

The previous prime is 125400221230913. The next prime is 125400221231027. The reversal of 125400221231004 is 400132122004521.

125400221231004 is a `hidden beast` number, since 1 + 2 + 5 + 400 + 2 + 21 + 231 + 0 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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, 42479748264 + ... + 42479751215.

It is an arithmetic number, because the mean of its divisors is an integer number (9019866861460).

Almost surely, 2^{125400221231004} is an apocalyptic number.

It is an amenable number.

125400221231004 is an abundant number, since it is smaller than the sum of its proper divisors (199314985781556).

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

125400221231004 is a wasteful number, since it uses less digits than its factorization.

125400221231004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84959499530 (or 84959499525 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 125400221231004 its reverse (400132122004521), we get a palindrome (525532343235525).

The spelling of 125400221231004 in words is "one hundred twenty-five trillion, four hundred billion, two hundred twenty-one million, two hundred thirty-one thousand, four".