22020404424 has 32 divisors (see below), whose sum is σ = 57444534720. Its totient is φ = 7020998336.

The previous prime is 22020404383. The next prime is 22020404429. The reversal of 22020404424 is 42440402022.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 22020404394 and 22020404403.

It is not an unprimeable number, because it can be changed into a prime (22020404429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19945467 + ... + 19946570.

It is an arithmetic number, because the mean of its divisors is an integer number (1795141710).

Almost surely, 2^22020404424 is an apocalyptic number.

22020404424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22020404424 is an abundant number, since it is smaller than the sum of its proper divisors (35424130296).

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

22020404424 is a wasteful number, since it uses less digits than its factorization.

22020404424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39892069 (or 39892065 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 22020404424 its reverse (42440402022), we get a palindrome (64460806446).

The spelling of 22020404424 in words is "twenty-two billion, twenty million, four hundred four thousand, four hundred twenty-four".