12111120099 has 48 divisors (see below), whose sum is σ = 19589169600. Its totient is φ = 7159074048.

The previous prime is 12111120017. The next prime is 12111120101. The reversal of 12111120099 is 99002111121.

It is not a de Polignac number, because 12111120099 - 2⁷ = 12111119971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12111120899) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 659362 + ... + 677480.

It is an arithmetic number, because the mean of its divisors is an integer number (408107700).

Almost surely, 2^12111120099 is an apocalyptic number.

12111120099 is a deficient number, since it is larger than the sum of its proper divisors (7478049501).

12111120099 is a wasteful number, since it uses less digits than its factorization.

12111120099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18364 (or 18361 counting only the distinct ones).

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

The spelling of 12111120099 in words is "twelve billion, one hundred eleven million, one hundred twenty thousand, ninety-nine".