3122330221 has 2 divisors, whose sum is σ = 3122330222. Its totient is φ = 3122330220.

The previous prime is 3122330213. The next prime is 3122330251. The reversal of 3122330221 is 1220332213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3078585225 + 43744996 = 55485^2 + 6614^2 .

It is an emirp because it is prime and its reverse (1220332213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3122330221 - 2³ = 3122330213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3122330251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561165110 + 1561165111.

It is an arithmetic number, because the mean of its divisors is an integer number (1561165111).

Almost surely, 2^3122330221 is an apocalyptic number.

It is an amenable number.

3122330221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3122330221 is an equidigital number, since it uses as much as digits as its factorization.

3122330221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 3122330221 is about 55877.8151058182. The cubic root of 3122330221 is about 1461.5924048232.

Adding to 3122330221 its reverse (1220332213), we get a palindrome (4342662434).

The spelling of 3122330221 in words is "three billion, one hundred twenty-two million, three hundred thirty thousand, two hundred twenty-one".