124125221524221 has 16 divisors (see below), whose sum is σ = 183925841296320. Its totient is φ = 82733666782320.

The previous prime is 124125221524177. The next prime is 124125221524313. The reversal of 124125221524221 is 122425122521421.

124125221524221 is a `hidden beast` number, since 1 + 2 + 4 + 1 + 2 + 5 + 221 + 5 + 2 + 422 + 1 = 666.

It is not a de Polignac number, because 124125221524221 - 2¹⁹ = 124125220999933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124125221524121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457664715 + ... + 457935848.

It is an arithmetic number, because the mean of its divisors is an integer number (11495365081020).

Almost surely, 2^{124125221524221} is an apocalyptic number.

It is an amenable number.

124125221524221 is a deficient number, since it is larger than the sum of its proper divisors (59800619772099).

124125221524221 is an equidigital number, since it uses as much as digits as its factorization.

124125221524221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915605593 (or 915605587 counting only the distinct ones).

The product of its digits is 51200, while the sum is 36.

The spelling of 124125221524221 in words is "one hundred twenty-four trillion, one hundred twenty-five billion, two hundred twenty-one million, five hundred twenty-four thousand, two hundred twenty-one".