220120222020 has 24 divisors (see below), whose sum is σ = 616336621824. Its totient is φ = 58698725856.

The previous prime is 220120221977. The next prime is 220120222027. The reversal of 220120222020 is 20222021022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (220120222027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1834335124 + ... + 1834335243.

It is an arithmetic number, because the mean of its divisors is an integer number (25680692576).

Almost surely, 2^220120222020 is an apocalyptic number.

220120222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220120222020 is an abundant number, since it is smaller than the sum of its proper divisors (396216399804).

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

220120222020 is a wasteful number, since it uses less digits than its factorization.

220120222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3668670379 (or 3668670377 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 220120222020 its reverse (20222021022), we get a palindrome (240342243042).

It can be divided in two parts, 2201202 and 22020, that added together give a palindrome (2223222).

The spelling of 220120222020 in words is "two hundred twenty billion, one hundred twenty million, two hundred twenty-two thousand, twenty".