22112000233220 has 48 divisors (see below), whose sum is σ = 46570141921968. Its totient is φ = 8819115110400.

The previous prime is 22112000233217. The next prime is 22112000233229. The reversal of 22112000233220 is 2233200021122.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 11095880778304 + 11016119454916 = 3331048^2 + 3319054^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 22112000233192 and 22112000233201.

It is not an unprimeable number, because it can be changed into a prime (22112000233229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18979064 + ... + 20110416.

It is an arithmetic number, because the mean of its divisors is an integer number (970211290041).

Almost surely, 2^{22112000233220} is an apocalyptic number.

22112000233220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112000233220 is an abundant number, since it is smaller than the sum of its proper divisors (24458141688748).

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

22112000233220 is a wasteful number, since it uses less digits than its factorization.

22112000233220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134200 (or 1134198 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22112000233220 its reverse (2233200021122), we get a palindrome (24345200254342).

The spelling of 22112000233220 in words is "twenty-two trillion, one hundred twelve billion, two hundred thirty-three thousand, two hundred twenty".