23221202022 has 24 divisors (see below), whose sum is σ = 51482666664. Its totient is φ = 7560391104.

The previous prime is 23221201921. The next prime is 23221202027. The reversal of 23221202022 is 22020212232.

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 = 23221201986 and 23221202004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221202027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15000003 + ... + 15001550.

It is an arithmetic number, because the mean of its divisors is an integer number (2145111111).

Almost surely, 2^23221202022 is an apocalyptic number.

23221202022 is an abundant number, since it is smaller than the sum of its proper divisors (28261464642).

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

23221202022 is a wasteful number, since it uses less digits than its factorization.

23221202022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30001604 (or 30001601 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 23221202022 its reverse (22020212232), we get a palindrome (45241414254).

The spelling of 23221202022 in words is "twenty-three billion, two hundred twenty-one million, two hundred two thousand, twenty-two".