122479522559 has 16 divisors (see below), whose sum is σ = 134597798400. Its totient is φ = 110933434656.

The previous prime is 122479522531. The next prime is 122479522573. The reversal of 122479522559 is 955225974221.

It is a happy number.

It is not a de Polignac number, because 122479522559 - 2²⁰ = 122478473983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122479522559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122479527559) 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, 828902 + ... + 965420.

It is an arithmetic number, because the mean of its divisors is an integer number (8412362400).

Almost surely, 2^122479522559 is an apocalyptic number.

122479522559 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

122479522559 is a deficient number, since it is larger than the sum of its proper divisors (12118275841).

122479522559 is a wasteful number, since it uses less digits than its factorization.

122479522559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138614.

The product of its digits is 4536000, while the sum is 53.

The spelling of 122479522559 in words is "one hundred twenty-two billion, four hundred seventy-nine million, five hundred twenty-two thousand, five hundred fifty-nine".