9441221 has 2 divisors, whose sum is σ = 9441222. Its totient is φ = 9441220.

The previous prime is 9441203. The next prime is 9441227. The reversal of 9441221 is 1221449.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6832996 + 2608225 = 2614^2 + 1615^2 .

It is an emirp because it is prime and its reverse (1221449) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9441221 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9441227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4720610 + 4720611.

It is an arithmetic number, because the mean of its divisors is an integer number (4720611).

Almost surely, 2^9441221 is an apocalyptic number.

It is an amenable number.

9441221 is a deficient number, since it is larger than the sum of its proper divisors (1).

9441221 is an equidigital number, since it uses as much as digits as its factorization.

9441221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 23.

The square root of 9441221 is about 3072.6569935481. The cubic root of 9441221 is about 211.3534726457.

The spelling of 9441221 in words is "nine million, four hundred forty-one thousand, two hundred twenty-one".