12112002021 has 16 divisors (see below), whose sum is σ = 18500236928. Its totient is φ = 6904699200.

The previous prime is 12112002011. The next prime is 12112002041. The reversal of 12112002021 is 12020021121.

It is not a de Polignac number, because 12112002021 - 2⁷ = 12112001893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12112001988 and 12112002006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112002011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 676150 + ... + 693831.

It is an arithmetic number, because the mean of its divisors is an integer number (1156264808).

Almost surely, 2^12112002021 is an apocalyptic number.

It is an amenable number.

12112002021 is a deficient number, since it is larger than the sum of its proper divisors (6388234907).

12112002021 is a wasteful number, since it uses less digits than its factorization.

12112002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370412.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12112002021 its reverse (12020021121), we get a palindrome (24132023142).

The spelling of 12112002021 in words is "twelve billion, one hundred twelve million, two thousand, twenty-one".