224089221 has 4 divisors (see below), whose sum is σ = 298785632. Its totient is φ = 149392812.

The previous prime is 224089219. The next prime is 224089241. The reversal of 224089221 is 122980422.

224089221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 224089221 - 2¹ = 224089219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224089241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37348201 + ... + 37348206.

It is an arithmetic number, because the mean of its divisors is an integer number (74696408).

Almost surely, 2^224089221 is an apocalyptic number.

It is an amenable number.

224089221 is a deficient number, since it is larger than the sum of its proper divisors (74696411).

224089221 is an equidigital number, since it uses as much as digits as its factorization.

224089221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74696410.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 224089221 is about 14969.6099147573. The cubic root of 224089221 is about 607.3984168578.

The spelling of 224089221 in words is "two hundred twenty-four million, eighty-nine thousand, two hundred twenty-one".