3031230221 has 2 divisors, whose sum is σ = 3031230222. Its totient is φ = 3031230220.

The previous prime is 3031230211. The next prime is 3031230233. The reversal of 3031230221 is 1220321303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2990449225 + 40780996 = 54685^2 + 6386^2 .

It is a cyclic number.

It is not a de Polignac number, because 3031230221 - 2²² = 3027035917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3031230221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3031230211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515615110 + 1515615111.

It is an arithmetic number, because the mean of its divisors is an integer number (1515615111).

Almost surely, 2^3031230221 is an apocalyptic number.

It is an amenable number.

3031230221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3031230221 is an equidigital number, since it uses as much as digits as its factorization.

3031230221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 3031230221 is about 55056.6092399450. The cubic root of 3031230221 is about 1447.2369452466.

Adding to 3031230221 its reverse (1220321303), we get a palindrome (4251551524).

The spelling of 3031230221 in words is "three billion, thirty-one million, two hundred thirty thousand, two hundred twenty-one".