22221110188 has 12 divisors (see below), whose sum is σ = 38951866800. Its totient is φ = 11092005392.

The previous prime is 22221110183. The next prime is 22221110201. The reversal of 22221110188 is 88101112222.

It is not an unprimeable number, because it can be changed into a prime (22221110183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4634731 + ... + 4639522.

It is an arithmetic number, because the mean of its divisors is an integer number (3245988900).

Almost surely, 2^22221110188 is an apocalyptic number.

It is an amenable number.

22221110188 is a deficient number, since it is larger than the sum of its proper divisors (16730756612).

22221110188 is a wasteful number, since it uses less digits than its factorization.

22221110188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9274856 (or 9274854 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 28.

The spelling of 22221110188 in words is "twenty-two billion, two hundred twenty-one million, one hundred ten thousand, one hundred eighty-eight".