211211010211 has 2 divisors, whose sum is σ = 211211010212. Its totient is φ = 211211010210.

The previous prime is 211211010203. The next prime is 211211010239. The reversal of 211211010211 is 112010112112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211211010211 - 2³ = 211211010203 is a prime.

It is a super-3 number, since 3×211211010211³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 211211010191 and 211211010200.

It is not a weakly prime, because it can be changed into another prime (211211019211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105605505105 + 105605505106.

It is an arithmetic number, because the mean of its divisors is an integer number (105605505106).

Almost surely, 2^211211010211 is an apocalyptic number.

211211010211 is a deficient number, since it is larger than the sum of its proper divisors (1).

211211010211 is an equidigital number, since it uses as much as digits as its factorization.

211211010211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211211010211 its reverse (112010112112), we get a palindrome (323221122323).

The spelling of 211211010211 in words is "two hundred eleven billion, two hundred eleven million, ten thousand, two hundred eleven".