22200044320 has 96 divisors (see below), whose sum is σ = 55571670000. Its totient is φ = 8351809536.

The previous prime is 22200044309. The next prime is 22200044329. The reversal of 22200044320 is 2344000222.

It can be written as a sum of positive squares in 8 ways, for example, as 1839037456 + 20361006864 = 42884^2 + 142692^2 .

It is not an unprimeable number, because it can be changed into a prime (22200044329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7475796 + ... + 7478764.

Almost surely, 2^22200044320 is an apocalyptic number.

22200044320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22200044320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27785835000).

22200044320 is an abundant number, since it is smaller than the sum of its proper divisors (33371625680).

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

22200044320 is a wasteful number, since it uses less digits than its factorization.

22200044320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5750 (or 5742 counting only the distinct ones).

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

Adding to 22200044320 its reverse (2344000222), we get a palindrome (24544044542).

The spelling of 22200044320 in words is "twenty-two billion, two hundred million, forty-four thousand, three hundred twenty".