12112156116 has 36 divisors (see below), whose sum is σ = 30857928192. Its totient is φ = 4005593424.

The previous prime is 12112156097. The next prime is 12112156123. The reversal of 12112156116 is 61165121121.

12112156116 is a `hidden beast` number, since 1 + 21 + 1 + 21 + 5 + 611 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12112156116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1320030 + ... + 1329173.

It is an arithmetic number, because the mean of its divisors is an integer number (857164672).

Almost surely, 2^12112156116 is an apocalyptic number.

It is an amenable number.

12112156116 is an abundant number, since it is smaller than the sum of its proper divisors (18745772076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12112156116 is a wasteful number, since it uses less digits than its factorization.

12112156116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649340 (or 2649335 counting only the distinct ones).

The product of its digits is 720, while the sum is 27.

Adding to 12112156116 its reverse (61165121121), we get a palindrome (73277277237).

The spelling of 12112156116 in words is "twelve billion, one hundred twelve million, one hundred fifty-six thousand, one hundred sixteen".