22400222200020 has 96 divisors (see below), whose sum is σ = 79645234502400. Its totient is φ = 5120050787712.

The previous prime is 22400222200019. The next prime is 22400222200039. The reversal of 22400222200020 is 2000222200422.

It is a happy number.

22400222200020 is a `hidden beast` number, since 2 + 2 + 400 + 22 + 220 + 0 + 0 + 20 = 666.

It is a super-2 number, since 2×22400222200020² (a number of 28 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 22400222199966 and 22400222200002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2962988575 + ... + 2962996134.

It is an arithmetic number, because the mean of its divisors is an integer number (829637859400).

Almost surely, 2^{22400222200020} is an apocalyptic number.

22400222200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22400222200020 is an abundant number, since it is smaller than the sum of its proper divisors (57245012302380).

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

22400222200020 is a wasteful number, since it uses less digits than its factorization.

22400222200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5925984734 (or 5925984726 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 22400222200020 its reverse (2000222200422), we get a palindrome (24400444400442).

The spelling of 22400222200020 in words is "twenty-two trillion, four hundred billion, two hundred twenty-two million, two hundred thousand, twenty".