220221200 has 30 divisors (see below), whose sum is σ = 529082394. Its totient is φ = 88088320.

The previous prime is 220221193. The next prime is 220221223. The reversal of 220221200 is 2122022.

It can be written as a sum of positive squares in 3 ways, for example, as 8111104 + 212110096 = 2848^2 + 14564^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 274877 + ... + 275676.

Almost surely, 2^220221200 is an apocalyptic number.

220221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220221200 is an abundant number, since it is smaller than the sum of its proper divisors (308861194).

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

220221200 is a wasteful number, since it uses less digits than its factorization.

220221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550571 (or 550560 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 220221200 is about 14839.8517512811. The cubic root of 220221200 is about 603.8833305347.

Adding to 220221200 its reverse (2122022), we get a palindrome (222343222).

The spelling of 220221200 in words is "two hundred twenty million, two hundred twenty-one thousand, two hundred".