125121521562 has 16 divisors (see below), whose sum is σ = 252672588480. Its totient is φ = 41302249632.

The previous prime is 125121521557. The next prime is 125121521563. The reversal of 125121521562 is 265125121521.

It is not an unprimeable number, because it can be changed into a prime (125121521563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101230387 + ... + 101231622.

It is an arithmetic number, because the mean of its divisors is an integer number (15792036780).

Almost surely, 2^125121521562 is an apocalyptic number.

125121521562 is an abundant number, since it is smaller than the sum of its proper divisors (127551066918).

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

125121521562 is a wasteful number, since it uses less digits than its factorization.

125121521562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202462117.

The product of its digits is 12000, while the sum is 33.

The spelling of 125121521562 in words is "one hundred twenty-five billion, one hundred twenty-one million, five hundred twenty-one thousand, five hundred sixty-two".