20301220220 has 24 divisors (see below), whose sum is σ = 42636368544. Its totient is φ = 8119763136.

The previous prime is 20301220189. The next prime is 20301220237. The reversal of 20301220220 is 2202210302.

It is a junction number, because it is equal to n+sod(n) for n = 20301220195 and 20301220204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223097 + ... + 300623.

It is an arithmetic number, because the mean of its divisors is an integer number (1776515356).

Almost surely, 2^20301220220 is an apocalyptic number.

20301220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20301220220 is an abundant number, since it is smaller than the sum of its proper divisors (22335148324).

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

20301220220 is a wasteful number, since it uses less digits than its factorization.

20301220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90629 (or 90627 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20301220220 its reverse (2202210302), we get a palindrome (22503430522).

The spelling of 20301220220 in words is "twenty billion, three hundred one million, two hundred twenty thousand, two hundred twenty".