30221132191 has 2 divisors, whose sum is σ = 30221132192. Its totient is φ = 30221132190.

The previous prime is 30221132171. The next prime is 30221132213. The reversal of 30221132191 is 19123112203.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30221132191 - 2⁷ = 30221132063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30221132171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15110566095 + 15110566096.

It is an arithmetic number, because the mean of its divisors is an integer number (15110566096).

Almost surely, 2^30221132191 is an apocalyptic number.

30221132191 is a deficient number, since it is larger than the sum of its proper divisors (1).

30221132191 is an equidigital number, since it uses as much as digits as its factorization.

30221132191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 30221132191 its reverse (19123112203), we get a palindrome (49344244394).

The spelling of 30221132191 in words is "thirty billion, two hundred twenty-one million, one hundred thirty-two thousand, one hundred ninety-one".