12112011112 has 16 divisors (see below), whose sum is σ = 22918371300. Its totient is φ = 6000445440.

The previous prime is 12112011089. The next prime is 12112011137. The reversal of 12112011112 is 21111021121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11949550596 + 162460516 = 109314^2 + 12746^2 .

It is a super-2 number, since 2×12112011112² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12112011092 and 12112011101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6944089 + ... + 6945832.

Almost surely, 2^12112011112 is an apocalyptic number.

It is an amenable number.

12112011112 is a deficient number, since it is larger than the sum of its proper divisors (10806360188).

12112011112 is a wasteful number, since it uses less digits than its factorization.

12112011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13890036 (or 13890032 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12112011112 its reverse (21111021121), we get a palindrome (33223032233).

The spelling of 12112011112 in words is "twelve billion, one hundred twelve million, eleven thousand, one hundred twelve".