220220000 has 360 divisors, whose sum is σ = 732927888. Its totient is φ = 63360000.

The previous prime is 220219991. The next prime is 220220053. The reversal of 220220000 is 22022.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 220220000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 16939994 + ... + 16940006.

Almost surely, 2^220220000 is an apocalyptic number.

220220000 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 220220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366463944).

220220000 is an abundant number, since it is smaller than the sum of its proper divisors (512707888).

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

220220000 is a wasteful number, since it uses less digits than its factorization.

220220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 220220000 is about 14839.8113195552. The cubic root of 220220000 is about 603.8822336659.

Adding to 220220000 its reverse (22022), we get a palindrome (220242022).

Multiplying 220220000 by its reverse (22022), we get a square (4849684840000 = 2202200²).

220220000 divided by its reverse (22022) gives a 4-th power (10000 = 10⁴).

The spelling of 220220000 in words is "two hundred twenty million, two hundred twenty thousand".