22221012032 has 28 divisors (see below), whose sum is σ = 44752961040. Its totient is φ = 10944675456.

The previous prime is 22221012019. The next prime is 22221012059. The reversal of 22221012032 is 23021012222.

It is a self number, because there is not a number n which added to its sum of digits gives 22221012032.

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, 2586782 + ... + 2595357.

Almost surely, 2^22221012032 is an apocalyptic number.

It is an amenable number.

22221012032 is an abundant number, since it is smaller than the sum of its proper divisors (22531949008).

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

22221012032 is an equidigital number, since it uses as much as digits as its factorization.

22221012032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182218 (or 5182208 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22221012032 its reverse (23021012222), we get a palindrome (45242024254).

The spelling of 22221012032 in words is "twenty-two billion, two hundred twenty-one million, twelve thousand, thirty-two".