125500115122 has 4 divisors (see below), whose sum is σ = 188250172686. Its totient is φ = 62750057560.

The previous prime is 125500115101. The next prime is 125500115129. The reversal of 125500115122 is 221511005521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68278212601 + 57221902521 = 261301^2 + 239211^2 .

It is not an unprimeable number, because it can be changed into a prime (125500115129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31375028779 + ... + 31375028782.

Almost surely, 2^125500115122 is an apocalyptic number.

125500115122 is a deficient number, since it is larger than the sum of its proper divisors (62750057564).

125500115122 is an equidigital number, since it uses as much as digits as its factorization.

125500115122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62750057563.

The product of its (nonzero) digits is 1000, while the sum is 25.

The spelling of 125500115122 in words is "one hundred twenty-five billion, five hundred million, one hundred fifteen thousand, one hundred twenty-two".