22221120022200 has 144 divisors (see below), whose sum is σ = 81410103426600. Its totient is φ = 5386938182400.

The previous prime is 22221120022181. The next prime is 22221120022223. The reversal of 22221120022200 is 222002112222.

22221120022200 is a `hidden beast` number, since 22 + 221 + 1 + 200 + 2 + 220 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 561119595 + ... + 561159194.

Almost surely, 2^{22221120022200} is an apocalyptic number.

22221120022200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22221120022200 is an abundant number, since it is smaller than the sum of its proper divisors (59188983404400).

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

22221120022200 is a wasteful number, since it uses less digits than its factorization.

22221120022200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122278822 (or 1122278810 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22221120022200 its reverse (222002112222), we get a palindrome (22443122134422).

The spelling of 22221120022200 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred twenty million, twenty-two thousand, two hundred".