221104324 has 24 divisors (see below), whose sum is σ = 442957760. Its totient is φ = 94598496.

The previous prime is 221104297. The next prime is 221104337. The reversal of 221104324 is 423401122.

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 7 ways as a sum of consecutive naturals, for example, 10954 + ... + 23710.

Almost surely, 2^221104324 is an apocalyptic number.

It is an amenable number.

221104324 is an abundant number, since it is smaller than the sum of its proper divisors (221853436).

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

221104324 is a wasteful number, since it uses less digits than its factorization.

221104324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13387 (or 13385 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 221104324 is about 14869.5771291587. The cubic root of 221104324 is about 604.6894784245.

Adding to 221104324 its reverse (423401122), we get a palindrome (644505446).

The spelling of 221104324 in words is "two hundred twenty-one million, one hundred four thousand, three hundred twenty-four".