22011222222200 has 24 divisors (see below), whose sum is σ = 51176091667080. Its totient is φ = 8804488888800.

The previous prime is 22011222222181. The next prime is 22011222222247. The reversal of 22011222222200 is 222222211022.

It is a super-2 number, since 2×22011222222200² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55028055356 + ... + 55028055755.

It is an arithmetic number, because the mean of its divisors is an integer number (2132337152795).

Almost surely, 2^{22011222222200} is an apocalyptic number.

22011222222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011222222200 is an abundant number, since it is smaller than the sum of its proper divisors (29164869444880).

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

22011222222200 is a wasteful number, since it uses less digits than its factorization.

22011222222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110056111127 (or 110056111118 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22011222222200 its reverse (222222211022), we get a palindrome (22233444433222).

The spelling of 22011222222200 in words is "twenty-two trillion, eleven billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred".