12112200211021 has 4 divisors (see below), whose sum is σ = 12123342990592. Its totient is φ = 12101057431452.

The previous prime is 12112200210923. The next prime is 12112200211073. The reversal of 12112200211021 is 12011200221121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12112200211021 - 2²⁵ = 12112166656589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12112200210986 and 12112200211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112200211091) 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, 5571388155 + ... + 5571390328.

It is an arithmetic number, because the mean of its divisors is an integer number (3030835747648).

Almost surely, 2^{12112200211021} is an apocalyptic number.

It is an amenable number.

12112200211021 is a deficient number, since it is larger than the sum of its proper divisors (11142779571).

12112200211021 is a wasteful number, since it uses less digits than its factorization.

12112200211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11142779570.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12112200211021 its reverse (12011200221121), we get a palindrome (24123400432142).

The spelling of 12112200211021 in words is "twelve trillion, one hundred twelve billion, two hundred million, two hundred eleven thousand, twenty-one".