22423401220 has 24 divisors (see below), whose sum is σ = 51369974208. Its totient is φ = 8153964000.

The previous prime is 22423401191. The next prime is 22423401283. The reversal of 22423401220 is 2210432422.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 22423401191 and 22423401200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50962056 + ... + 50962495.

It is an arithmetic number, because the mean of its divisors is an integer number (2140415592).

Almost surely, 2^22423401220 is an apocalyptic number.

22423401220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22423401220 is an abundant number, since it is smaller than the sum of its proper divisors (28946572988).

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

22423401220 is a wasteful number, since it uses less digits than its factorization.

22423401220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101924571 (or 101924569 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 22423401220 its reverse (2210432422), we get a palindrome (24633833642).

The spelling of 22423401220 in words is "twenty-two billion, four hundred twenty-three million, four hundred one thousand, two hundred twenty".