220221300 has 72 divisors (see below), whose sum is σ = 686199136. Its totient is φ = 54207360.

The previous prime is 220221233. The next prime is 220221341. The reversal of 220221300 is 3122022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24334 + ... + 32133.

Almost surely, 2^220221300 is an apocalyptic number.

220221300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220221300 is an abundant number, since it is smaller than the sum of its proper divisors (465977836).

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

220221300 is a wasteful number, since it uses less digits than its factorization.

220221300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56497 (or 56490 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 220221300 is about 14839.8551205866. The cubic root of 220221300 is about 603.8834219403.

Adding to 220221300 its reverse (3122022), we get a palindrome (223343322).

The spelling of 220221300 in words is "two hundred twenty million, two hundred twenty-one thousand, three hundred".