12112120012 has 12 divisors (see below), whose sum is σ = 21196990360. Its totient is φ = 6055837056.

The previous prime is 12112119991. The next prime is 12112120063. The reversal of 12112120012 is 21002121121.

It is a junction number, because it is equal to n+sod(n) for n = 12112119974 and 12112120001.

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, 155164 + ... + 219772.

Almost surely, 2^12112120012 is an apocalyptic number.

It is an amenable number.

12112120012 is a deficient number, since it is larger than the sum of its proper divisors (9084870348).

12112120012 is a wasteful number, since it uses less digits than its factorization.

12112120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111480 (or 111478 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12112120012 its reverse (21002121121), we get a palindrome (33114241133).

The spelling of 12112120012 in words is "twelve billion, one hundred twelve million, one hundred twenty thousand, twelve".