22101232320 has 140 divisors (see below), whose sum is σ = 78618063744. Its totient is φ = 5893655040.

The previous prime is 22101232271. The next prime is 22101232337. The reversal of 22101232320 is 2323210122.

22101232320 is a `hidden beast` number, since 221 + 0 + 123 + 2 + 320 = 666.

It is a super-2 number, since 2×22101232320² (a number of 21 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 = 22101232293 and 22101232302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 400416 + ... + 452255.

Almost surely, 2^22101232320 is an apocalyptic number.

22101232320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101232320 is an abundant number, since it is smaller than the sum of its proper divisors (56516831424).

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

22101232320 is an equidigital number, since it uses as much as digits as its factorization.

22101232320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852700 (or 852681 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22101232320 its reverse (2323210122), we get a palindrome (24424442442).

The spelling of 22101232320 in words is "twenty-two billion, one hundred one million, two hundred thirty-two thousand, three hundred twenty".