211822100011 has 2 divisors, whose sum is σ = 211822100012. Its totient is φ = 211822100010.

The previous prime is 211822099987. The next prime is 211822100059. The reversal of 211822100011 is 110001228112.

211822100011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211822100011 - 2²¹ = 211820002859 is a prime.

It is not a weakly prime, because it can be changed into another prime (211822100081) 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, 105911050005 + 105911050006.

It is an arithmetic number, because the mean of its divisors is an integer number (105911050006).

Almost surely, 2^211822100011 is an apocalyptic number.

211822100011 is a deficient number, since it is larger than the sum of its proper divisors (1).

211822100011 is an equidigital number, since it uses as much as digits as its factorization.

211822100011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 211822100011 its reverse (110001228112), we get a palindrome (321823328123).

The spelling of 211822100011 in words is "two hundred eleven billion, eight hundred twenty-two million, one hundred thousand, eleven".