30040230221 has 2 divisors, whose sum is σ = 30040230222. Its totient is φ = 30040230220.

The previous prime is 30040230217. The next prime is 30040230223. The reversal of 30040230221 is 12203204003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26654154121 + 3386076100 = 163261^2 + 58190^2 .

It is a cyclic number.

It is not a de Polignac number, because 30040230221 - 2² = 30040230217 is a prime.

Together with 30040230223, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30040230221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30040230223) 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, 15020115110 + 15020115111.

It is an arithmetic number, because the mean of its divisors is an integer number (15020115111).

Almost surely, 2^30040230221 is an apocalyptic number.

It is an amenable number.

30040230221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30040230221 is an equidigital number, since it uses as much as digits as its factorization.

30040230221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 30040230221 its reverse (12203204003), we get a palindrome (42243434224).

The spelling of 30040230221 in words is "thirty billion, forty million, two hundred thirty thousand, two hundred twenty-one".