100221304 has 64 divisors (see below), whose sum is σ = 205286400. Its totient is φ = 45741696.

The previous prime is 100221299. The next prime is 100221311. The reversal of 100221304 is 403122001.

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, 419217 + ... + 419455.

It is an arithmetic number, because the mean of its divisors is an integer number (3207600).

Almost surely, 2^100221304 is an apocalyptic number.

It is an amenable number.

100221304 is an abundant number, since it is smaller than the sum of its proper divisors (105065096).

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

100221304 is a wasteful number, since it uses less digits than its factorization.

100221304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 100221304 is about 10011.0590848321. The cubic root of 100221304 is about 464.5010318143.

Adding to 100221304 its reverse (403122001), we get a palindrome (503343305).

The spelling of 100221304 in words is "one hundred million, two hundred twenty-one thousand, three hundred four".