30013210233221 has 2 divisors, whose sum is σ = 30013210233222. Its totient is φ = 30013210233220.

The previous prime is 30013210233199. The next prime is 30013210233247. The reversal of 30013210233221 is 12233201231003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28794921888100 + 1218288345121 = 5366090^2 + 1103761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30013210233221 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30013210233421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006605116610 + 15006605116611.

It is an arithmetic number, because the mean of its divisors is an integer number (15006605116611).

Almost surely, 2^{30013210233221} is an apocalyptic number.

It is an amenable number.

30013210233221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30013210233221 is an equidigital number, since it uses as much as digits as its factorization.

30013210233221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 30013210233221 its reverse (12233201231003), we get a palindrome (42246411464224).

The spelling of 30013210233221 in words is "thirty trillion, thirteen billion, two hundred ten million, two hundred thirty-three thousand, two hundred twenty-one".