30221221139 has 2 divisors, whose sum is σ = 30221221140. Its totient is φ = 30221221138.

The previous prime is 30221221027. The next prime is 30221221159. The reversal of 30221221139 is 93112212203.

It is a strong prime.

It is an emirp because it is prime and its reverse (93112212203) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30221221139 is a prime.

It is not a weakly prime, because it can be changed into another prime (30221221159) 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, 15110610569 + 15110610570.

It is an arithmetic number, because the mean of its divisors is an integer number (15110610570).

Almost surely, 2^30221221139 is an apocalyptic number.

30221221139 is a deficient number, since it is larger than the sum of its proper divisors (1).

30221221139 is an equidigital number, since it uses as much as digits as its factorization.

30221221139 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 26.

The spelling of 30221221139 in words is "thirty billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred thirty-nine".