220021302331020 has 72 divisors (see below), whose sum is σ = 626678313824304. Its totient is φ = 57677900669312.

The previous prime is 220021302331013. The next prime is 220021302331057. The reversal of 220021302331020 is 20133203120022.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 526510719 + ... + 526928438.

It is an arithmetic number, because the mean of its divisors is an integer number (8703865469782).

Almost surely, 2^{220021302331020} is an apocalyptic number.

220021302331020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220021302331020 is an abundant number, since it is smaller than the sum of its proper divisors (406657011493284).

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

220021302331020 is a wasteful number, since it uses less digits than its factorization.

220021302331020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053439287 (or 1053439226 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 220021302331020 its reverse (20133203120022), we get a palindrome (240154505451042).

The spelling of 220021302331020 in words is "two hundred twenty trillion, twenty-one billion, three hundred two million, three hundred thirty-one thousand, twenty".