22200112031220 has 144 divisors (see below), whose sum is σ = 68391005002320. Its totient is φ = 5828355606528.

The previous prime is 22200112031219. The next prime is 22200112031249. The reversal of 22200112031220 is 2213021100222.

22200112031220 is a `hidden beast` number, since 2 + 220 + 0 + 112 + 0 + 312 + 20 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 2944532449296 + 19255579581924 = 1715964^2 + 4388118^2 .

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 = 22200112031193 and 22200112031202.

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 47 ways as a sum of consecutive naturals, for example, 523177 + ... + 6683856.

Almost surely, 2^{22200112031220} is an apocalyptic number.

22200112031220 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 22200112031220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34195502501160).

22200112031220 is an abundant number, since it is smaller than the sum of its proper divisors (46190892971100).

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

22200112031220 is a wasteful number, since it uses less digits than its factorization.

22200112031220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7207314 (or 7207309 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22200112031220 its reverse (2213021100222), we get a palindrome (24413133131442).

The spelling of 22200112031220 in words is "twenty-two trillion, two hundred billion, one hundred twelve million, thirty-one thousand, two hundred twenty".