332444221 has 2 divisors, whose sum is σ = 332444222. Its totient is φ = 332444220.

The previous prime is 332444213. The next prime is 332444261. The reversal of 332444221 is 122444233.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 289476196 + 42968025 = 17014^2 + 6555^2 .

It is a cyclic number.

It is not a de Polignac number, because 332444221 - 2³ = 332444213 is a prime.

It is a super-2 number, since 2×332444221² = 221038320152593682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (332444201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166222110 + 166222111.

It is an arithmetic number, because the mean of its divisors is an integer number (166222111).

Almost surely, 2^332444221 is an apocalyptic number.

It is an amenable number.

332444221 is a deficient number, since it is larger than the sum of its proper divisors (1).

332444221 is an equidigital number, since it uses as much as digits as its factorization.

332444221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 25.

The square root of 332444221 is about 18233.0529807819. The cubic root of 332444221 is about 692.7442493600.

Adding to 332444221 its reverse (122444233), we get a palindrome (454888454).

The spelling of 332444221 in words is "three hundred thirty-two million, four hundred forty-four thousand, two hundred twenty-one".