3224423221 has 2 divisors, whose sum is σ = 3224423222. Its totient is φ = 3224423220.

The previous prime is 3224423197. The next prime is 3224423239. The reversal of 3224423221 is 1223244223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3185360721 + 39062500 = 56439^2 + 6250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3224423221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3225423221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1612211610 + 1612211611.

It is an arithmetic number, because the mean of its divisors is an integer number (1612211611).

Almost surely, 2^3224423221 is an apocalyptic number.

It is an amenable number.

3224423221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3224423221 is an equidigital number, since it uses as much as digits as its factorization.

3224423221 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 3224423221 is about 56784.0049749927. The cubic root of 3224423221 is about 1477.3520984030.

Adding to 3224423221 its reverse (1223244223), we get a palindrome (4447667444).

The spelling of 3224423221 in words is "three billion, two hundred twenty-four million, four hundred twenty-three thousand, two hundred twenty-one".