9224221 has 8 divisors (see below), whose sum is σ = 9516024. Its totient is φ = 8935680.

The previous prime is 9224197. The next prime is 9224239. The reversal of 9224221 is 1224229.

It can be written as a sum of positive squares in 4 ways, for example, as 308025 + 8916196 = 555^2 + 2986^2 .

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 9224221 - 2⁷ = 9224093 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9224192 and 9224201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9224261) 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, 5721 + ... + 7153.

It is an arithmetic number, because the mean of its divisors is an integer number (1189503).

Almost surely, 2^9224221 is an apocalyptic number.

It is an amenable number.

9224221 is a deficient number, since it is larger than the sum of its proper divisors (291803).

9224221 is a wasteful number, since it uses less digits than its factorization.

9224221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631.

The product of its digits is 576, while the sum is 22.

The square root of 9224221 is about 3037.1402667641. The cubic root of 9224221 is about 209.7216341983.

The spelling of 9224221 in words is "nine million, two hundred twenty-four thousand, two hundred twenty-one".