30223244221 has 2 divisors, whose sum is σ = 30223244222. Its totient is φ = 30223244220.

The previous prime is 30223244213. The next prime is 30223244239. The reversal of 30223244221 is 12244232203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27559652121 + 2663592100 = 166011^2 + 51610^2 .

It is a cyclic number.

It is not a de Polignac number, because 30223244221 - 2³ = 30223244213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30223244251) 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, 15111622110 + 15111622111.

It is an arithmetic number, because the mean of its divisors is an integer number (15111622111).

Almost surely, 2^30223244221 is an apocalyptic number.

It is an amenable number.

30223244221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30223244221 is an equidigital number, since it uses as much as digits as its factorization.

30223244221 is an odious number, because the sum of its binary digits is odd.

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

Adding to 30223244221 its reverse (12244232203), we get a palindrome (42467476424).

The spelling of 30223244221 in words is "thirty billion, two hundred twenty-three million, two hundred forty-four thousand, two hundred twenty-one".