11010212121691 has 2 divisors, whose sum is σ = 11010212121692. Its totient is φ = 11010212121690.

The previous prime is 11010212121659. The next prime is 11010212121697. The reversal of 11010212121691 is 19612121201011.

It is a strong prime.

It is an emirp because it is prime and its reverse (19612121201011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11010212121691 - 2⁵ = 11010212121659 is a prime.

It is not a weakly prime, because it can be changed into another prime (11010212121697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505106060845 + 5505106060846.

It is an arithmetic number, because the mean of its divisors is an integer number (5505106060846).

Almost surely, 2^{11010212121691} is an apocalyptic number.

11010212121691 is a deficient number, since it is larger than the sum of its proper divisors (1).

11010212121691 is an equidigital number, since it uses as much as digits as its factorization.

11010212121691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 28.

The spelling of 11010212121691 in words is "eleven trillion, ten billion, two hundred twelve million, one hundred twenty-one thousand, six hundred ninety-one".