22020020404220 has 96 divisors (see below), whose sum is σ = 46795507012800. Its totient is φ = 8703221243904.

The previous prime is 22020020404189. The next prime is 22020020404273. The reversal of 22020020404220 is 2240402002022.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22020020404192 and 22020020404201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1767676232 + ... + 1767688688.

It is an arithmetic number, because the mean of its divisors is an integer number (487453198050).

Almost surely, 2^{22020020404220} is an apocalyptic number.

22020020404220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020020404220 is an abundant number, since it is smaller than the sum of its proper divisors (24775486608580).

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

22020020404220 is a wasteful number, since it uses less digits than its factorization.

22020020404220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15567 (or 15565 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 22020020404220 its reverse (2240402002022), we get a palindrome (24260422406242).

The spelling of 22020020404220 in words is "twenty-two trillion, twenty billion, twenty million, four hundred four thousand, two hundred twenty".