220221111110020 has 24 divisors (see below), whose sum is σ = 462465870451200. Its totient is φ = 88088151659232.

The previous prime is 220221111109949. The next prime is 220221111110059. The reversal of 220221111110020 is 20011111122022.

It is a junction number, because it is equal to n+sod(n) for n = 220221111109976 and 220221111110003.

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, 12079780 + ... + 24214939.

It is an arithmetic number, because the mean of its divisors is an integer number (19269411268800).

Almost surely, 2^{220221111110020} is an apocalyptic number.

220221111110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220221111110020 is an abundant number, since it is smaller than the sum of its proper divisors (242244759341180).

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

220221111110020 is a wasteful number, since it uses less digits than its factorization.

220221111110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36598107 (or 36598105 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 220221111110020 its reverse (20011111122022), we get a palindrome (240232222232042).

The spelling of 220221111110020 in words is "two hundred twenty trillion, two hundred twenty-one billion, one hundred eleven million, one hundred ten thousand, twenty".