220122222020 has 12 divisors (see below), whose sum is σ = 462256666284. Its totient is φ = 88048888800.

The previous prime is 220122222007. The next prime is 220122222031. The reversal of 220122222020 is 20222221022.

It can be written as a sum of positive squares in 2 ways, for example, as 90394030336 + 129728191684 = 300656^2 + 360178^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220122222020.

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, 5503055531 + ... + 5503055570.

It is an arithmetic number, because the mean of its divisors is an integer number (38521388857).

Almost surely, 2^220122222020 is an apocalyptic number.

220122222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220122222020 is an abundant number, since it is smaller than the sum of its proper divisors (242134444264).

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

220122222020 is a wasteful number, since it uses less digits than its factorization.

220122222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11006111110 (or 11006111108 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 220122222020 its reverse (20222221022), we get a palindrome (240344443042).

The spelling of 220122222020 in words is "two hundred twenty billion, one hundred twenty-two million, two hundred twenty-two thousand, twenty".