22213222112 has 48 divisors (see below), whose sum is σ = 45169633152. Its totient is φ = 10741992960.

The previous prime is 22213222027. The next prime is 22213222117. The reversal of 22213222112 is 21122231222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22213222117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1975418 + ... + 1986630.

It is an arithmetic number, because the mean of its divisors is an integer number (941034024).

Almost surely, 2^22213222112 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 22213222112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22584816576).

22213222112 is an abundant number, since it is smaller than the sum of its proper divisors (22956411040).

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

22213222112 is a wasteful number, since it uses less digits than its factorization.

22213222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13251 (or 13243 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

Adding to 22213222112 its reverse (21122231222), we get a palindrome (43335453334).

The spelling of 22213222112 in words is "twenty-two billion, two hundred thirteen million, two hundred twenty-two thousand, one hundred twelve".