22220211008 has 28 divisors (see below), whose sum is σ = 44098361892. Its totient is φ = 11108812800.

The previous prime is 22220211007. The next prime is 22220211037. The reversal of 22220211008 is 80011202222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15517186624 + 6703024384 = 124568^2 + 81872^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220211001) 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, 779666 + ... + 807662.

Almost surely, 2^22220211008 is an apocalyptic number.

It is an amenable number.

22220211008 is a deficient number, since it is larger than the sum of its proper divisors (21878150884).

22220211008 is a wasteful number, since it uses less digits than its factorization.

22220211008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40410 (or 40400 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The spelling of 22220211008 in words is "twenty-two billion, two hundred twenty million, two hundred eleven thousand, eight".