22221200112 has 160 divisors (see below), whose sum is σ = 62214232320. Its totient is φ = 6810531840.

The previous prime is 22221200081. The next prime is 22221200129. The reversal of 22221200112 is 21100212222.

It is a junction number, because it is equal to n+sod(n) for n = 22221200091 and 22221200100.

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, 23316628 + ... + 23317580.

It is an arithmetic number, because the mean of its divisors is an integer number (388838952).

Almost surely, 2^22221200112 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 22221200112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31107116160).

22221200112 is an abundant number, since it is smaller than the sum of its proper divisors (39993032208).

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

22221200112 is a wasteful number, since it uses less digits than its factorization.

22221200112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711 (or 1705 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22221200112 its reverse (21100212222), we get a palindrome (43321412334).

The spelling of 22221200112 in words is "twenty-two billion, two hundred twenty-one million, two hundred thousand, one hundred twelve".