211101002211947 has 2 divisors, whose sum is σ = 211101002211948. Its totient is φ = 211101002211946.

The previous prime is 211101002211937. The next prime is 211101002212013. The reversal of 211101002211947 is 749112200101112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211101002211947 - 2⁸ = 211101002211691 is a prime.

It is not a weakly prime, because it can be changed into another prime (211101002211937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105550501105973 + 105550501105974.

It is an arithmetic number, because the mean of its divisors is an integer number (105550501105974).

Almost surely, 2^{211101002211947} is an apocalyptic number.

211101002211947 is a deficient number, since it is larger than the sum of its proper divisors (1).

211101002211947 is an equidigital number, since it uses as much as digits as its factorization.

211101002211947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 32.

The spelling of 211101002211947 in words is "two hundred eleven trillion, one hundred one billion, two million, two hundred eleven thousand, nine hundred forty-seven".