224233221 has 8 divisors (see below), whose sum is σ = 299271744. Its totient is φ = 149341760.

The previous prime is 224233189. The next prime is 224233237. The reversal of 224233221 is 122332422.

224233221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 224233221 - 2⁵ = 224233189 is a prime.

It is a super-3 number, since 3×224233221³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224233291) 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, 33156 + ... + 39341.

It is an arithmetic number, because the mean of its divisors is an integer number (37408968).

Almost surely, 2^224233221 is an apocalyptic number.

It is an amenable number.

224233221 is a deficient number, since it is larger than the sum of its proper divisors (75038523).

224233221 is a wasteful number, since it uses less digits than its factorization.

224233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73531.

The product of its digits is 1152, while the sum is 21.

The square root of 224233221 is about 14974.4188868884. The cubic root of 224233221 is about 607.5284939810.

Adding to 224233221 its reverse (122332422), we get a palindrome (346565643).

The spelling of 224233221 in words is "two hundred twenty-four million, two hundred thirty-three thousand, two hundred twenty-one".