22221320200 has 24 divisors (see below), whose sum is σ = 51664569930. Its totient is φ = 8888528000.

The previous prime is 22221320183. The next prime is 22221320201. The reversal of 22221320200 is 202312222.

It can be written as a sum of positive squares in 3 ways, for example, as 12896327844 + 9324992356 = 113562^2 + 96566^2 .

It is not an unprimeable number, because it can be changed into a prime (22221320201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55553101 + ... + 55553500.

Almost surely, 2^22221320200 is an apocalyptic number.

22221320200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22221320200 is an abundant number, since it is smaller than the sum of its proper divisors (29443249730).

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

22221320200 is a wasteful number, since it uses less digits than its factorization.

22221320200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111106617 (or 111106608 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 22221320200 its reverse (202312222), we get a palindrome (22423632422).

The spelling of 22221320200 in words is "twenty-two billion, two hundred twenty-one million, three hundred twenty thousand, two hundred".