22222020202220 has 12 divisors (see below), whose sum is σ = 46666242424704. Its totient is φ = 8888808080880.

The previous prime is 22222020202183. The next prime is 22222020202241. The reversal of 22222020202220 is 2220202022222.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1111101010111 = 22222020202220 / (2 + 2 + 2 + 2 + 2 + 0 + 2 + 0 + 2 + 0 + 2 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 22222020202192 and 22222020202201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555550505036 + ... + 555550505075.

It is an arithmetic number, because the mean of its divisors is an integer number (3888853535392).

Almost surely, 2^{22222020202220} is an apocalyptic number.

22222020202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222020202220 is an abundant number, since it is smaller than the sum of its proper divisors (24444222222484).

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

22222020202220 is a wasteful number, since it uses less digits than its factorization.

22222020202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111101010120 (or 1111101010118 counting only the distinct ones).

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

Adding to 22222020202220 its reverse (2220202022222), we get a palindrome (24442222224442).

It can be divided in two parts, 2 and 2222020202220, that added together give a palindrome (2222020202222).

The spelling of 22222020202220 in words is "twenty-two trillion, two hundred twenty-two billion, twenty million, two hundred two thousand, two hundred twenty".