220221323020 has 48 divisors (see below), whose sum is σ = 466060267008. Its totient is φ = 87406007040.

The previous prime is 220221323009. The next prime is 220221323029. The reversal of 220221323020 is 20323122022.

220221323020 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×220221323020² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220221323029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1443934 + ... + 1589146.

It is an arithmetic number, because the mean of its divisors is an integer number (9709588896).

Almost surely, 2^220221323020 is an apocalyptic number.

220221323020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220221323020 is an abundant number, since it is smaller than the sum of its proper divisors (245838943988).

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

220221323020 is a wasteful number, since it uses less digits than its factorization.

220221323020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145810 (or 145808 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 220221323020 its reverse (20323122022), we get a palindrome (240544445042).

The spelling of 220221323020 in words is "two hundred twenty billion, two hundred twenty-one million, three hundred twenty-three thousand, twenty".