12112402012 has 12 divisors (see below), whose sum is σ = 22443568560. Its totient is φ = 5699953856.

The previous prime is 12112401953. The next prime is 12112402013. The reversal of 12112402012 is 21020421121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112402013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89061712 + ... + 89061847.

It is an arithmetic number, because the mean of its divisors is an integer number (1870297380).

Almost surely, 2^12112402012 is an apocalyptic number.

It is an amenable number.

12112402012 is a deficient number, since it is larger than the sum of its proper divisors (10331166548).

12112402012 is a wasteful number, since it uses less digits than its factorization.

12112402012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178123580 (or 178123578 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12112402012 its reverse (21020421121), we get a palindrome (33132823133).

The spelling of 12112402012 in words is "twelve billion, one hundred twelve million, four hundred two thousand, twelve".