9232221 has 4 divisors (see below), whose sum is σ = 12309632. Its totient is φ = 6154812.

The previous prime is 9232219. The next prime is 9232231. The reversal of 9232221 is 1222329.

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 9232221 - 2¹ = 9232219 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 (9232231) 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, 1538701 + ... + 1538706.

It is an arithmetic number, because the mean of its divisors is an integer number (3077408).

Almost surely, 2^9232221 is an apocalyptic number.

It is an amenable number.

9232221 is a deficient number, since it is larger than the sum of its proper divisors (3077411).

9232221 is a wasteful number, since it uses less digits than its factorization.

9232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3077410.

The product of its digits is 432, while the sum is 21.

The square root of 9232221 is about 3038.4570097337. The cubic root of 9232221 is about 209.7822459389.

It can be divided in two parts, 9232 and 221, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 9232221 in words is "nine million, two hundred thirty-two thousand, two hundred twenty-one".