220020220 has 48 divisors (see below), whose sum is σ = 529841088. Its totient is φ = 75179520.

The previous prime is 220020217. The next prime is 220020233. The reversal of 220020220 is 22020022.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 220020197 and 220020206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41310 + ... + 46330.

It is an arithmetic number, because the mean of its divisors is an integer number (11038356).

Almost surely, 2^220020220 is an apocalyptic number.

220020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264920544).

220020220 is an abundant number, since it is smaller than the sum of its proper divisors (309820868).

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

220020220 is a wasteful number, since it uses less digits than its factorization.

220020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5350 (or 5348 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 220020220 is about 14833.0785745913. The cubic root of 220020220 is about 603.6995677061.

Adding to 220020220 its reverse (22020022), we get a palindrome (242040242).

The spelling of 220020220 in words is "two hundred twenty million, twenty thousand, two hundred twenty".