22222220032 has 36 divisors (see below), whose sum is σ = 46692257080. Its totient is φ = 10526312448.

The previous prime is 22222220011. The next prime is 22222220077. The reversal of 22222220032 is 23002222222.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 22222219991 and 22222220009.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2279493 + ... + 2289220.

Almost surely, 2^22222220032 is an apocalyptic number.

It is an amenable number.

22222220032 is an abundant number, since it is smaller than the sum of its proper divisors (24470037048).

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

22222220032 is an equidigital number, since it uses as much as digits as its factorization.

22222220032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4568748 (or 4568734 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 22222220032 its reverse (23002222222), we get a palindrome (45224442254).

The spelling of 22222220032 in words is "twenty-two billion, two hundred twenty-two million, two hundred twenty thousand, thirty-two".