220021021010220 has 96 divisors (see below), whose sum is σ = 648639926887680. Its totient is φ = 55570807860480.

The previous prime is 220021021010207. The next prime is 220021021010267. The reversal of 220021021010220 is 22010120120022.

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

It is a self number, because there is not a number n which added to its sum of digits gives 220021021010220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18637146 + ... + 28060385.

It is an arithmetic number, because the mean of its divisors is an integer number (6756665905080).

Almost surely, 2^{220021021010220} is an apocalyptic number.

220021021010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220021021010220 is an abundant number, since it is smaller than the sum of its proper divisors (428618905877460).

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

220021021010220 is a wasteful number, since it uses less digits than its factorization.

220021021010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46701695 (or 46701693 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220021021010220 its reverse (22010120120022), we get a palindrome (242031141130242).

The spelling of 220021021010220 in words is "two hundred twenty trillion, twenty-one billion, twenty-one million, ten thousand, two hundred twenty".