220101022020 has 48 divisors (see below), whose sum is σ = 672308578368. Its totient is φ = 53357823360.

The previous prime is 220101022013. The next prime is 220101022033. The reversal of 220101022020 is 20220101022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 220101021987 and 220101022005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166742539 + ... + 166743858.

It is an arithmetic number, because the mean of its divisors is an integer number (14006428716).

Almost surely, 2^220101022020 is an apocalyptic number.

220101022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220101022020 is an abundant number, since it is smaller than the sum of its proper divisors (452207556348).

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

220101022020 is a wasteful number, since it uses less digits than its factorization.

220101022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333486420 (or 333486418 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 220101022020 its reverse (20220101022), we get a palindrome (240321123042).

The spelling of 220101022020 in words is "two hundred twenty billion, one hundred one million, twenty-two thousand, twenty".