12112321112012 has 216 divisors, whose sum is σ = 24860360276640. Its totient is φ = 5149936563200.

The previous prime is 12112321111993. The next prime is 12112321112039. The reversal of 12112321112012 is 21021112321121.

It is a super-2 number, since 2×12112321112012² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 15916321712 + ... + 15916322472.

It is an arithmetic number, because the mean of its divisors is an integer number (115094260540).

Almost surely, 2^{12112321112012} is an apocalyptic number.

It is an amenable number.

12112321112012 is an abundant number, since it is smaller than the sum of its proper divisors (12748039164628).

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

12112321112012 is a wasteful number, since it uses less digits than its factorization.

12112321112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425 (or 1359 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 12112321112012 its reverse (21021112321121), we get a palindrome (33133433433133).

The spelling of 12112321112012 in words is "twelve trillion, one hundred twelve billion, three hundred twenty-one million, one hundred twelve thousand, twelve".