220110221020 has 48 divisors (see below), whose sum is σ = 490291286688. Its totient is φ = 82717767680.

The previous prime is 220110221017. The next prime is 220110221029. The reversal of 220110221020 is 20122011022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220110221029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383521 + ... + 766360.

It is an arithmetic number, because the mean of its divisors is an integer number (10214401806).

Almost surely, 2^220110221020 is an apocalyptic number.

220110221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220110221020 is an abundant number, since it is smaller than the sum of its proper divisors (270181065668).

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

220110221020 is a wasteful number, since it uses less digits than its factorization.

220110221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150470 (or 1150468 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220110221020 its reverse (20122011022), we get a palindrome (240232232042).

The spelling of 220110221020 in words is "two hundred twenty billion, one hundred ten million, two hundred twenty-one thousand, twenty".