220122020 has 12 divisors (see below), whose sum is σ = 462256284. Its totient is φ = 88048800.

The previous prime is 220122017. The next prime is 220122043. The reversal of 220122020 is 20221022.

It can be written as a sum of positive squares in 2 ways, for example, as 88698724 + 131423296 = 9418^2 + 11464^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220121992 and 220122010.

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, 5503031 + ... + 5503070.

It is an arithmetic number, because the mean of its divisors is an integer number (38521357).

Almost surely, 2^220122020 is an apocalyptic number.

220122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220122020 is an abundant number, since it is smaller than the sum of its proper divisors (242134264).

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

220122020 is a wasteful number, since it uses less digits than its factorization.

220122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11006110 (or 11006108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 220122020 is about 14836.5096973648. The cubic root of 220122020 is about 603.7926608774.

Adding to 220122020 its reverse (20221022), we get a palindrome (240343042).

The spelling of 220122020 in words is "two hundred twenty million, one hundred twenty-two thousand, twenty".