12112202200021 has 16 divisors (see below), whose sum is σ = 15115133472768. Its totient is φ = 9429200852400.

The previous prime is 12112202199997. The next prime is 12112202200097. The reversal of 12112202200021 is 12000220221121.

It is a happy number.

It is not a de Polignac number, because 12112202200021 - 2¹¹ = 12112202197973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12112202199968 and 12112202200004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112202230021) 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, 73907485 + ... + 74071186.

It is an arithmetic number, because the mean of its divisors is an integer number (944695842048).

Almost surely, 2^{12112202200021} is an apocalyptic number.

12112202200021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12112202200021 is a deficient number, since it is larger than the sum of its proper divisors (3002931272747).

12112202200021 is a wasteful number, since it uses less digits than its factorization.

12112202200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147979752.

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

Adding to 12112202200021 its reverse (12000220221121), we get a palindrome (24112422421142).

The spelling of 12112202200021 in words is "twelve trillion, one hundred twelve billion, two hundred two million, two hundred thousand, twenty-one".