12112112111099 has 24 divisors (see below), whose sum is σ = 16552816561008. Its totient is φ = 8712008706240.

The previous prime is 12112112111089. The next prime is 12112112111129. The reversal of 12112112111099 is 99011121121121.

It is not a de Polignac number, because 12112112111099 - 2¹⁶ = 12112112045563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12112112111009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 864279572 + ... + 864293585.

It is an arithmetic number, because the mean of its divisors is an integer number (689700690042).

Almost surely, 2^{12112112111099} is an apocalyptic number.

12112112111099 is a deficient number, since it is larger than the sum of its proper divisors (4440704449909).

12112112111099 is a wasteful number, since it uses less digits than its factorization.

12112112111099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728573195 (or 1728573188 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 32.

The spelling of 12112112111099 in words is "twelve trillion, one hundred twelve billion, one hundred twelve million, one hundred eleven thousand, ninety-nine".