12113202021 has 32 divisors (see below), whose sum is σ = 16508942208. Its totient is φ = 7899141120.

The previous prime is 12113202007. The next prime is 12113202029. The reversal of 12113202021 is 12020231121.

It is not a de Polignac number, because 12113202021 - 2⁶ = 12113201957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113202029) 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, 8452321 + ... + 8453753.

It is an arithmetic number, because the mean of its divisors is an integer number (515904444).

Almost surely, 2^12113202021 is an apocalyptic number.

It is an amenable number.

12113202021 is a deficient number, since it is larger than the sum of its proper divisors (4395740187).

12113202021 is a wasteful number, since it uses less digits than its factorization.

12113202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12113202021 its reverse (12020231121), we get a palindrome (24133433142).

The spelling of 12113202021 in words is "twelve billion, one hundred thirteen million, two hundred two thousand, twenty-one".