111211200099 has 20 divisors (see below), whose sum is σ = 166145532696. Its totient is φ = 74134007136.

The previous prime is 111211200073. The next prime is 111211200103. The reversal of 111211200099 is 990002112111.

It is not a de Polignac number, because 111211200099 - 2⁸ = 111211199843 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (111211200299) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 921052 + ... + 1034774.

Almost surely, 2^111211200099 is an apocalyptic number.

111211200099 is a deficient number, since it is larger than the sum of its proper divisors (54934332597).

111211200099 is a wasteful number, since it uses less digits than its factorization.

111211200099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125808 (or 125799 counting only the distinct ones).

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

The spelling of 111211200099 in words is "one hundred eleven billion, two hundred eleven million, two hundred thousand, ninety-nine".