22003021200 has 60 divisors (see below), whose sum is σ = 70483015088. Its totient is φ = 5867472000.

The previous prime is 22003021169. The next prime is 22003021207. The reversal of 22003021200 is 212030022.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (22003021207) 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, 9166726 + ... + 9169125.

Almost surely, 2^22003021200 is an apocalyptic number.

22003021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22003021200 is an abundant number, since it is smaller than the sum of its proper divisors (48479993888).

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

22003021200 is a wasteful number, since it uses less digits than its factorization.

22003021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18335872 (or 18335861 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 22003021200 its reverse (212030022), we get a palindrome (22215051222).

The spelling of 22003021200 in words is "twenty-two billion, three million, twenty-one thousand, two hundred".