12112111001012 has 24 divisors (see below), whose sum is σ = 23209080582240. Its totient is φ = 5485038433760.

The previous prime is 12112111000991. The next prime is 12112111001021. The reversal of 12112111001012 is 21010011121121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511652198 + ... + 511675869.

It is an arithmetic number, because the mean of its divisors is an integer number (967045024260).

Almost surely, 2^{12112111001012} is an apocalyptic number.

It is an amenable number.

12112111001012 is a deficient number, since it is larger than the sum of its proper divisors (11096969581228).

12112111001012 is a wasteful number, since it uses less digits than its factorization.

12112111001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023328351 (or 1023328349 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12112111001012 its reverse (21010011121121), we get a palindrome (33122122122133).

The spelling of 12112111001012 in words is "twelve trillion, one hundred twelve billion, one hundred eleven million, one thousand, twelve".