22220442200 has 48 divisors (see below), whose sum is σ = 56359127160. Its totient is φ = 8080160000.

The previous prime is 22220442199. The next prime is 22220442217. The reversal of 22220442200 is 224402222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5047901 + ... + 5052300.

Almost surely, 2^22220442200 is an apocalyptic number.

22220442200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220442200 is an abundant number, since it is smaller than the sum of its proper divisors (34138684960).

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

22220442200 is a wasteful number, since it uses less digits than its factorization.

22220442200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100228 (or 10100219 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 22220442200 its reverse (224402222), we get a palindrome (22444844422).

The spelling of 22220442200 in words is "twenty-two billion, two hundred twenty million, four hundred forty-two thousand, two hundred".