22112002112 has 56 divisors (see below), whose sum is σ = 44561857536. Its totient is φ = 10884750848.

The previous prime is 22112002109. The next prime is 22112002139. The reversal of 22112002112 is 21120021122.

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, 1549313 + ... + 1563519.

It is an arithmetic number, because the mean of its divisors is an integer number (795747456).

Almost surely, 2^22112002112 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 22112002112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22280928768).

22112002112 is an abundant number, since it is smaller than the sum of its proper divisors (22449855424).

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

22112002112 is a wasteful number, since it uses less digits than its factorization.

22112002112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14595 (or 14585 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22112002112 its reverse (21120021122), we get a palindrome (43232023234).

It can be divided in two parts, 2 and 2112002112, that multiplied together give a palindrome (4224004224).

The spelling of 22112002112 in words is "twenty-two billion, one hundred twelve million, two thousand, one hundred twelve".