211211110219 has 2 divisors, whose sum is σ = 211211110220. Its totient is φ = 211211110218.

The previous prime is 211211110217. The next prime is 211211110249. The reversal of 211211110219 is 912011112112.

It is a happy number.

211211110219 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 211211110219 - 2¹ = 211211110217 is a prime.

It is a super-2 number, since 2×211211110219² (a number of 23 digits) contains 22 as substring.

Together with 211211110217, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 211211110219.

It is not a weakly prime, because it can be changed into another prime (211211110217) 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, 105605555109 + 105605555110.

It is an arithmetic number, because the mean of its divisors is an integer number (105605555110).

Almost surely, 2^211211110219 is an apocalyptic number.

211211110219 is a deficient number, since it is larger than the sum of its proper divisors (1).

211211110219 is an equidigital number, since it uses as much as digits as its factorization.

211211110219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 211211110219 in words is "two hundred eleven billion, two hundred eleven million, one hundred ten thousand, two hundred nineteen".