12112221212202 has 128 divisors (see below), whose sum is σ = 26905320806400. Its totient is φ = 3617865098496.

The previous prime is 12112221212197. The next prime is 12112221212237. The reversal of 12112221212202 is 20221212221121.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 156229824 + ... + 156307332.

It is an arithmetic number, because the mean of its divisors is an integer number (210197818800).

Almost surely, 2^{12112221212202} is an apocalyptic number.

12112221212202 is an abundant number, since it is smaller than the sum of its proper divisors (14793099594198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12112221212202 is a wasteful number, since it uses less digits than its factorization.

12112221212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78220.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12112221212202 its reverse (20221212221121), we get a palindrome (32333433433323).

The spelling of 12112221212202 in words is "twelve trillion, one hundred twelve billion, two hundred twenty-one million, two hundred twelve thousand, two hundred two".