30221201120993 has 2 divisors, whose sum is σ = 30221201120994. Its totient is φ = 30221201120992.

The previous prime is 30221201120911. The next prime is 30221201121031. The reversal of 30221201120993 is 39902110212203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29414818672849 + 806382448144 = 5423543^2 + 897988^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30221201120993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (30221201620993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15110600560496 + 15110600560497.

It is an arithmetic number, because the mean of its divisors is an integer number (15110600560497).

Almost surely, 2^{30221201120993} is an apocalyptic number.

It is an amenable number.

30221201120993 is a deficient number, since it is larger than the sum of its proper divisors (1).

30221201120993 is an equidigital number, since it uses as much as digits as its factorization.

30221201120993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 30221201120993 in words is "thirty trillion, two hundred twenty-one billion, two hundred one million, one hundred twenty thousand, nine hundred ninety-three".