22224422420 has 24 divisors (see below), whose sum is σ = 46677181824. Its totient is φ = 8888646176.

The previous prime is 22224422413. The next prime is 22224422509. The reversal of 22224422420 is 2422442222.

It is a self number, because there is not a number n which added to its sum of digits gives 22224422420.

It is a congruent number.

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, 102497 + ... + 234423.

It is an arithmetic number, because the mean of its divisors is an integer number (1944882576).

Almost surely, 2^22224422420 is an apocalyptic number.

22224422420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22224422420 is an abundant number, since it is smaller than the sum of its proper divisors (24452759404).

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

22224422420 is a wasteful number, since it uses less digits than its factorization.

22224422420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140359 (or 140357 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 22224422420 its reverse (2422442222), we get a palindrome (24646864642).

The spelling of 22224422420 in words is "twenty-two billion, two hundred twenty-four million, four hundred twenty-two thousand, four hundred twenty".