111012102099 has 20 divisors (see below), whose sum is σ = 169689477496. Its totient is φ = 72286947936.

The previous prime is 111012102077. The next prime is 111012102119. The reversal of 111012102099 is 990201210111.

It is not a de Polignac number, because 111012102099 - 2¹⁷ = 111011971027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111012202099) 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 19 ways as a sum of consecutive naturals, for example, 15932794 + ... + 15939759.

Almost surely, 2^111012102099 is an apocalyptic number.

111012102099 is a deficient number, since it is larger than the sum of its proper divisors (58677375397).

111012102099 is an equidigital number, since it uses as much as digits as its factorization.

111012102099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31872608 (or 31872599 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The spelling of 111012102099 in words is "one hundred eleven billion, twelve million, one hundred two thousand, ninety-nine".