20023222320 has 60 divisors (see below), whose sum is σ = 67244657376. Its totient is φ = 5339525760.

The previous prime is 20023222273. The next prime is 20023222321. The reversal of 20023222320 is 2322232002.

20023222320 is a `hidden beast` number, since 20 + 0 + 2 + 322 + 2 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×20023222320² (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 = 20023222293 and 20023222302.

It is not an unprimeable number, because it can be changed into a prime (20023222321) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 13904296 + ... + 13905735.

Almost surely, 2^20023222320 is an apocalyptic number.

20023222320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20023222320 is an abundant number, since it is smaller than the sum of its proper divisors (47221435056).

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

20023222320 is a wasteful number, since it uses less digits than its factorization.

20023222320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27810050 (or 27810041 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 20023222320 its reverse (2322232002), we get a palindrome (22345454322).

The spelling of 20023222320 in words is "twenty billion, twenty-three million, two hundred twenty-two thousand, three hundred twenty".