30221330771 has 2 divisors, whose sum is σ = 30221330772. Its totient is φ = 30221330770.

The previous prime is 30221330759. The next prime is 30221330791. The reversal of 30221330771 is 17703312203.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30221330771 is a prime.

It is not a weakly prime, because it can be changed into another prime (30221330791) 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, 15110665385 + 15110665386.

It is an arithmetic number, because the mean of its divisors is an integer number (15110665386).

Almost surely, 2^30221330771 is an apocalyptic number.

30221330771 is a deficient number, since it is larger than the sum of its proper divisors (1).

30221330771 is an equidigital number, since it uses as much as digits as its factorization.

30221330771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 29.

Adding to 30221330771 its reverse (17703312203), we get a palindrome (47924642974).

The spelling of 30221330771 in words is "thirty billion, two hundred twenty-one million, three hundred thirty thousand, seven hundred seventy-one".