12112104021 has 32 divisors (see below), whose sum is σ = 17188416000. Its totient is φ = 7565151168.

The previous prime is 12112103989. The next prime is 12112104071. The reversal of 12112104021 is 12040121121.

It is not a de Polignac number, because 12112104021 - 2⁵ = 12112103989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112104071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2128446 + ... + 2134128.

It is an arithmetic number, because the mean of its divisors is an integer number (537138000).

Almost surely, 2^12112104021 is an apocalyptic number.

It is an amenable number.

12112104021 is a deficient number, since it is larger than the sum of its proper divisors (5076311979).

12112104021 is a wasteful number, since it uses less digits than its factorization.

12112104021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6113.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12112104021 its reverse (12040121121), we get a palindrome (24152225142).

The spelling of 12112104021 in words is "twelve billion, one hundred twelve million, one hundred four thousand, twenty-one".