122110109979 has 64 divisors (see below), whose sum is σ = 194697216000. Its totient is φ = 67094121600.

The previous prime is 122110109951. The next prime is 122110110029. The reversal of 122110109979 is 979901011221.

It is not a de Polignac number, because 122110109979 - 2¹² = 122110105883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122110109979.

It is not an unprimeable number, because it can be changed into a prime (122110109939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 50899222 + ... + 50901620.

It is an arithmetic number, because the mean of its divisors is an integer number (3042144000).

Almost surely, 2^122110109979 is an apocalyptic number.

122110109979 is a deficient number, since it is larger than the sum of its proper divisors (72587106021).

122110109979 is a wasteful number, since it uses less digits than its factorization.

122110109979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4496.

The product of its (nonzero) digits is 20412, while the sum is 42.

The spelling of 122110109979 in words is "one hundred twenty-two billion, one hundred ten million, one hundred nine thousand, nine hundred seventy-nine".