22003221200 has 60 divisors (see below), whose sum is σ = 52879755360. Its totient is φ = 8798455680.

The previous prime is 22003221179. The next prime is 22003221209. The reversal of 22003221200 is 212230022.

It is a super-2 number, since 2×22003221200² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22003221209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1600757 + ... + 1614443.

It is an arithmetic number, because the mean of its divisors is an integer number (881329256).

Almost surely, 2^22003221200 is an apocalyptic number.

22003221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22003221200 is an abundant number, since it is smaller than the sum of its proper divisors (30876534160).

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

22003221200 is a wasteful number, since it uses less digits than its factorization.

22003221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17724 (or 17713 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 22003221200 its reverse (212230022), we get a palindrome (22215451222).

The spelling of 22003221200 in words is "twenty-two billion, three million, two hundred twenty-one thousand, two hundred".