30221011966687 has 2 divisors, whose sum is σ = 30221011966688. Its totient is φ = 30221011966686.

The previous prime is 30221011966679. The next prime is 30221011966697. The reversal of 30221011966687 is 78666911012203.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30221011966687 - 2³ = 30221011966679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30221011966697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15110505983343 + 15110505983344.

It is an arithmetic number, because the mean of its divisors is an integer number (15110505983344).

Almost surely, 2^{30221011966687} is an apocalyptic number.

30221011966687 is a deficient number, since it is larger than the sum of its proper divisors (1).

30221011966687 is an equidigital number, since it uses as much as digits as its factorization.

30221011966687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 30221011966687 in words is "thirty trillion, two hundred twenty-one billion, eleven million, nine hundred sixty-six thousand, six hundred eighty-seven".