30221203210309 has 2 divisors, whose sum is σ = 30221203210310. Its totient is φ = 30221203210308.

The previous prime is 30221203210277. The next prime is 30221203210327. The reversal of 30221203210309 is 90301230212203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26087097647809 + 4134105562500 = 5107553^2 + 2033250^2 .

It is a cyclic number.

It is not a de Polignac number, because 30221203210309 - 2⁵ = 30221203210277 is a prime.

It is a super-2 number, since 2×30221203210309² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30221203270309) 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, 15110601605154 + 15110601605155.

It is an arithmetic number, because the mean of its divisors is an integer number (15110601605155).

Almost surely, 2^{30221203210309} is an apocalyptic number.

It is an amenable number.

30221203210309 is a deficient number, since it is larger than the sum of its proper divisors (1).

30221203210309 is an equidigital number, since it uses as much as digits as its factorization.

30221203210309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 30221203210309 in words is "thirty trillion, two hundred twenty-one billion, two hundred three million, two hundred ten thousand, three hundred nine".