122125079218 has 4 divisors (see below), whose sum is σ = 183187618830. Its totient is φ = 61062539608.

The previous prime is 122125079201. The next prime is 122125079221. The reversal of 122125079218 is 812970521221.

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., 110654026609 + 11471052609 = 332647^2 + 107103^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30531269803 + ... + 30531269806.

Almost surely, 2^122125079218 is an apocalyptic number.

122125079218 is a deficient number, since it is larger than the sum of its proper divisors (61062539612).

122125079218 is an equidigital number, since it uses as much as digits as its factorization.

122125079218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61062539611.

The product of its (nonzero) digits is 40320, while the sum is 40.

The spelling of 122125079218 in words is "one hundred twenty-two billion, one hundred twenty-five million, seventy-nine thousand, two hundred eighteen".