22424400220 has 48 divisors (see below), whose sum is σ = 49540831200. Its totient is φ = 8513657600.

The previous prime is 22424400211. The next prime is 22424400269. The reversal of 22424400220 is 2200442422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22424400191 and 22424400200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293431 + ... + 361870.

It is an arithmetic number, because the mean of its divisors is an integer number (1032100650).

Almost surely, 2^22424400220 is an apocalyptic number.

22424400220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22424400220 is an abundant number, since it is smaller than the sum of its proper divisors (27116430980).

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

22424400220 is a wasteful number, since it uses less digits than its factorization.

22424400220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655398 (or 655396 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 22424400220 its reverse (2200442422), we get a palindrome (24624842642).

The spelling of 22424400220 in words is "twenty-two billion, four hundred twenty-four million, four hundred thousand, two hundred twenty".