224510221 has 8 divisors (see below), whose sum is σ = 242676224. Its totient is φ = 206472240.

The previous prime is 224510207. The next prime is 224510263. The reversal of 224510221 is 122015422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 224510221 - 2⁵ = 224510189 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 (224510201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28341 + ... + 35386.

It is an arithmetic number, because the mean of its divisors is an integer number (30334528).

Almost surely, 2^224510221 is an apocalyptic number.

It is an amenable number.

224510221 is a deficient number, since it is larger than the sum of its proper divisors (18166003).

224510221 is a wasteful number, since it uses less digits than its factorization.

224510221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64011.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 224510221 is about 14983.6651390773. The cubic root of 224510221 is about 607.7785552700.

Adding to 224510221 its reverse (122015422), we get a palindrome (346525643).

The spelling of 224510221 in words is "two hundred twenty-four million, five hundred ten thousand, two hundred twenty-one".