22221000200 has 144 divisors (see below), whose sum is σ = 60178648320. Its totient is φ = 7608504960.

The previous prime is 22221000187. The next prime is 22221000209. The reversal of 22221000200 is 200012222.

It is not an unprimeable number, because it can be changed into a prime (22221000209) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14179817 + ... + 14181383.

It is an arithmetic number, because the mean of its divisors is an integer number (417907280).

Almost surely, 2^22221000200 is an apocalyptic number.

22221000200 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 22221000200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30089324160).

22221000200 is an abundant number, since it is smaller than the sum of its proper divisors (37957648120).

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

22221000200 is a wasteful number, since it uses less digits than its factorization.

22221000200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3044 (or 3028 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 22221000200 its reverse (200012222), we get a palindrome (22421012422).

The spelling of 22221000200 in words is "twenty-two billion, two hundred twenty-one million, two hundred", and thus it is an aban number.