12112222044 has 96 divisors (see below), whose sum is σ = 31190455296. Its totient is φ = 3634986240.

The previous prime is 12112222039. The next prime is 12112222051. The reversal of 12112222044 is 44022221121.

It is a self number, because there is not a number n which added to its sum of digits gives 12112222044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2248234 + ... + 2253614.

It is an arithmetic number, because the mean of its divisors is an integer number (324900576).

Almost surely, 2^12112222044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12112222044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15595227648).

12112222044 is an abundant number, since it is smaller than the sum of its proper divisors (19078233252).

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

12112222044 is a wasteful number, since it uses less digits than its factorization.

12112222044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5755 (or 5753 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12112222044 its reverse (44022221121), we get a palindrome (56134443165).

The spelling of 12112222044 in words is "twelve billion, one hundred twelve million, two hundred twenty-two thousand, forty-four".