122256056518 has 4 divisors (see below), whose sum is σ = 183384084780. Its totient is φ = 61128028258.

The previous prime is 122256056471. The next prime is 122256056569. The reversal of 122256056518 is 815650652221.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30564014128 + ... + 30564014131.

It is an arithmetic number, because the mean of its divisors is an integer number (45846021195).

Almost surely, 2^122256056518 is an apocalyptic number.

122256056518 is a deficient number, since it is larger than the sum of its proper divisors (61128028262).

122256056518 is an equidigital number, since it uses as much as digits as its factorization.

122256056518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61128028261.

The product of its (nonzero) digits is 288000, while the sum is 43.

The spelling of 122256056518 in words is "one hundred twenty-two billion, two hundred fifty-six million, fifty-six thousand, five hundred eighteen".