111002219979 has 32 divisors (see below), whose sum is σ = 175712302080. Its totient is φ = 61011148800.

The previous prime is 111002219969. The next prime is 111002219983. The reversal of 111002219979 is 979912200111.

It is not a de Polignac number, because 111002219979 - 2³² = 106707252683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111002219979.

It is not an unprimeable number, because it can be changed into a prime (111002219929) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 846774 + ... + 969035.

It is an arithmetic number, because the mean of its divisors is an integer number (5491009440).

Almost surely, 2^111002219979 is an apocalyptic number.

111002219979 is a deficient number, since it is larger than the sum of its proper divisors (64710082101).

111002219979 is a wasteful number, since it uses less digits than its factorization.

111002219979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815931.

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

The spelling of 111002219979 in words is "one hundred eleven billion, two million, two hundred nineteen thousand, nine hundred seventy-nine".