12013222112 has 24 divisors (see below), whose sum is σ = 24895823400. Its totient is φ = 5690473344.

The previous prime is 12013222037. The next prime is 12013222163. The reversal of 12013222112 is 21122231021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9878687 + ... + 9879902.

It is an arithmetic number, because the mean of its divisors is an integer number (1037325975).

Almost surely, 2^12013222112 is an apocalyptic number.

It is an amenable number.

12013222112 is an abundant number, since it is smaller than the sum of its proper divisors (12882601288).

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

12013222112 is a wasteful number, since it uses less digits than its factorization.

12013222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19758618 (or 19758610 counting only the distinct ones).

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

Adding to 12013222112 its reverse (21122231021), we get a palindrome (33135453133).

The spelling of 12013222112 in words is "twelve billion, thirteen million, two hundred twenty-two thousand, one hundred twelve".