111100022109979 has 16 divisors (see below), whose sum is σ = 127313958767616. Its totient is φ = 94971878035200.

The previous prime is 111100022109919. The next prime is 111100022109997. The reversal of 111100022109979 is 979901220001111.

It is a cyclic number.

It is not a de Polignac number, because 111100022109979 - 2³⁹ = 110550266296091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111100022109919) 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, 1086424 + ... + 14945914.

It is an arithmetic number, because the mean of its divisors is an integer number (7957122422976).

Almost surely, 2^{111100022109979} is an apocalyptic number.

111100022109979 is a deficient number, since it is larger than the sum of its proper divisors (16213936657637).

111100022109979 is a wasteful number, since it uses less digits than its factorization.

111100022109979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13862586.

The product of its (nonzero) digits is 20412, while the sum is 43.

The spelling of 111100022109979 in words is "one hundred eleven trillion, one hundred billion, twenty-two million, one hundred nine thousand, nine hundred seventy-nine".