2211474817691 has 2 divisors, whose sum is σ = 2211474817692. Its totient is φ = 2211474817690.

The previous prime is 2211474817661. The next prime is 2211474817697. The reversal of 2211474817691 is 1967184741122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2211474817691 - 2⁶ = 2211474817627 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2211474817697) 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, 1105737408845 + 1105737408846.

It is an arithmetic number, because the mean of its divisors is an integer number (1105737408846).

Almost surely, 2^{2211474817691} is an apocalyptic number.

2211474817691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211474817691 is an equidigital number, since it uses as much as digits as its factorization.

2211474817691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 53.

The spelling of 2211474817691 in words is "two trillion, two hundred eleven billion, four hundred seventy-four million, eight hundred seventeen thousand, six hundred ninety-one".