111111101100099 has 24 divisors (see below), whose sum is σ = 161258989320000. Its totient is φ = 73720928741040.

The previous prime is 111111101100029. The next prime is 111111101100133. The reversal of 111111101100099 is 990001101111111.

It is not a de Polignac number, because 111111101100099 - 2²³ = 111111092711491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111111101100029) 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 23 ways as a sum of consecutive naturals, for example, 68125852 + ... + 69737750.

It is an arithmetic number, because the mean of its divisors is an integer number (6719124555000).

Almost surely, 2^{111111101100099} is an apocalyptic number.

111111101100099 is a deficient number, since it is larger than the sum of its proper divisors (50147888219901).

111111101100099 is a wasteful number, since it uses less digits than its factorization.

111111101100099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648415 (or 1648412 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 27.

The spelling of 111111101100099 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred one million, one hundred thousand, ninety-nine".