12112202112111 has 24 divisors (see below), whose sum is σ = 18554764035600. Its totient is φ = 7587415293696.

The previous prime is 12112202112019. The next prime is 12112202112133. The reversal of 12112202112111 is 11121120221121.

It is a happy number.

12112202112111 is a `hidden beast` number, since 1 + 21 + 1 + 220 + 211 + 211 + 1 = 666.

It is not a de Polignac number, because 12112202112111 - 2²³ = 12112193723503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112202112181) 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, 64477761 + ... + 64665338.

It is an arithmetic number, because the mean of its divisors is an integer number (773115168150).

Almost surely, 2^{12112202112111} is an apocalyptic number.

12112202112111 is a deficient number, since it is larger than the sum of its proper divisors (6442561923489).

12112202112111 is a wasteful number, since it uses less digits than its factorization.

12112202112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129143735 (or 129143732 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 12112202112111 its reverse (11121120221121), we get a palindrome (23233322333232).

The spelling of 12112202112111 in words is "twelve trillion, one hundred twelve billion, two hundred two million, one hundred twelve thousand, one hundred eleven".