22200222020 has 12 divisors (see below), whose sum is σ = 46620466284. Its totient is φ = 8880088800.

The previous prime is 22200222007. The next prime is 22200222047. The reversal of 22200222020 is 2022200222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5238285376 + 16961936644 = 72376^2 + 130238^2 .

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22200221986 and 22200222004.

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, 555005531 + ... + 555005570.

It is an arithmetic number, because the mean of its divisors is an integer number (3885038857).

Almost surely, 2^22200222020 is an apocalyptic number.

22200222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22200222020 is an abundant number, since it is smaller than the sum of its proper divisors (24420244264).

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

22200222020 is a wasteful number, since it uses less digits than its factorization.

22200222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110011110 (or 1110011108 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 22200222020 its reverse (2022200222), we get a palindrome (24222422242).

The spelling of 22200222020 in words is "twenty-two billion, two hundred million, two hundred twenty-two thousand, twenty".