122639045118 has 8 divisors (see below), whose sum is σ = 245278090248. Its totient is φ = 40879681704.

The previous prime is 122639045107. The next prime is 122639045147. The reversal of 122639045118 is 811540936221.

It is a sphenic number, since it is the product of 3 distinct primes.

122639045118 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 122639045118.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10219920421 + ... + 10219920432.

It is an arithmetic number, because the mean of its divisors is an integer number (30659761281).

Almost surely, 2^122639045118 is an apocalyptic number.

122639045118 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

122639045118 is a wasteful number, since it uses less digits than its factorization.

122639045118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20439840858.

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 122639045118 in words is "one hundred twenty-two billion, six hundred thirty-nine million, forty-five thousand, one hundred eighteen".