12112210000221 has 96 divisors (see below), whose sum is σ = 17116844384640. Its totient is φ = 7610609664000.

The previous prime is 12112210000211. The next prime is 12112210000307. The reversal of 12112210000221 is 12200001221121.

It is not a de Polignac number, because 12112210000221 - 2⁶ = 12112210000157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12112210000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112210000211) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20153427321 + ... + 20153427921.

It is an arithmetic number, because the mean of its divisors is an integer number (178300462340).

Almost surely, 2^{12112210000221} is an apocalyptic number.

It is an amenable number.

12112210000221 is a deficient number, since it is larger than the sum of its proper divisors (5004634384419).

12112210000221 is a wasteful number, since it uses less digits than its factorization.

12112210000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167 (or 1054 counting only the distinct ones).

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

Adding to 12112210000221 its reverse (12200001221121), we get a palindrome (24312211221342).

The spelling of 12112210000221 in words is "twelve trillion, one hundred twelve billion, two hundred ten million, two hundred twenty-one", and thus it is an aban number.