22112400234 has 16 divisors (see below), whose sum is σ = 44232937920. Its totient is φ = 7369443840.

The previous prime is 22112400229. The next prime is 22112400251. The reversal of 22112400234 is 43200421122.

It is a self number, because there is not a number n which added to its sum of digits gives 22112400234.

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, 303447 + ... + 369194.

It is an arithmetic number, because the mean of its divisors is an integer number (2764558620).

Almost surely, 2^22112400234 is an apocalyptic number.

22112400234 is an abundant number, since it is smaller than the sum of its proper divisors (22120537686).

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

22112400234 is a wasteful number, since it uses less digits than its factorization.

22112400234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678125.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22112400234 its reverse (43200421122), we get a palindrome (65312821356).

The spelling of 22112400234 in words is "twenty-two billion, one hundred twelve million, four hundred thousand, two hundred thirty-four".