211210210220011 has 2 divisors, whose sum is σ = 211210210220012. Its totient is φ = 211210210220010.

The previous prime is 211210210219993. The next prime is 211210210220027. The reversal of 211210210220011 is 110022012012112.

It is an a-pointer prime, because the next prime (211210210220027) can be obtained adding 211210210220011 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211210210220011 - 2¹⁵ = 211210210187243 is a prime.

It is not a weakly prime, because it can be changed into another prime (211210210223011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105605105110005 + 105605105110006.

It is an arithmetic number, because the mean of its divisors is an integer number (105605105110006).

Almost surely, 2^{211210210220011} is an apocalyptic number.

211210210220011 is a deficient number, since it is larger than the sum of its proper divisors (1).

211210210220011 is an equidigital number, since it uses as much as digits as its factorization.

211210210220011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211210210220011 its reverse (110022012012112), we get a palindrome (321232222232123).

The spelling of 211210210220011 in words is "two hundred eleven trillion, two hundred ten billion, two hundred ten million, two hundred twenty thousand, eleven".