220222102122020 has 48 divisors (see below), whose sum is σ = 462680236731888. Its totient is φ = 88048118538240.

The previous prime is 220222102121951. The next prime is 220222102122073. The reversal of 220222102122020 is 20221201222022.

It can be written as a sum of positive squares in 8 ways, for example, as 2463914138596 + 217758187983424 = 1569686^2 + 14756632^2 .

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 = 220222102121983 and 220222102122001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639686654 + ... + 640030826.

It is an arithmetic number, because the mean of its divisors is an integer number (9639171598581).

Almost surely, 2^{220222102122020} is an apocalyptic number.

220222102122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220222102122020 is an abundant number, since it is smaller than the sum of its proper divisors (242458134609868).

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

220222102122020 is a wasteful number, since it uses less digits than its factorization.

220222102122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358880 (or 358878 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 220222102122020 its reverse (20221201222022), we get a palindrome (240443303344042).

The spelling of 220222102122020 in words is "two hundred twenty trillion, two hundred twenty-two billion, one hundred two million, one hundred twenty-two thousand, twenty".