12112220132 has 24 divisors (see below), whose sum is σ = 21376231800. Its totient is φ = 6004869120.

The previous prime is 12112220119. The next prime is 12112220161. The reversal of 12112220132 is 23102221121.

It can be written as a sum of positive squares in 4 ways, for example, as 6049106176 + 6063113956 = 77776^2 + 77866^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12112220132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326282 + ... + 361502.

It is an arithmetic number, because the mean of its divisors is an integer number (890676325).

Almost surely, 2^12112220132 is an apocalyptic number.

It is an amenable number.

12112220132 is a deficient number, since it is larger than the sum of its proper divisors (9264011668).

12112220132 is a wasteful number, since it uses less digits than its factorization.

12112220132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35951 (or 35949 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12112220132 its reverse (23102221121), we get a palindrome (35214441253).

The spelling of 12112220132 in words is "twelve billion, one hundred twelve million, two hundred twenty thousand, one hundred thirty-two".