211210211011 has 2 divisors, whose sum is σ = 211210211012. Its totient is φ = 211210211010.

The previous prime is 211210210961. The next prime is 211210211041. The reversal of 211210211011 is 110112012112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211210211011 - 2¹⁵ = 211210178243 is a prime.

It is a super-2 number, since 2×211210211011² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211210210982 and 211210211000.

It is not a weakly prime, because it can be changed into another prime (211210211041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105605105505 + 105605105506.

It is an arithmetic number, because the mean of its divisors is an integer number (105605105506).

Almost surely, 2^211210211011 is an apocalyptic number.

211210211011 is a deficient number, since it is larger than the sum of its proper divisors (1).

211210211011 is an equidigital number, since it uses as much as digits as its factorization.

211210211011 is an odious number, because the sum of its binary digits is odd.

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

Adding to 211210211011 its reverse (110112012112), we get a palindrome (321322223123).

The spelling of 211210211011 in words is "two hundred eleven billion, two hundred ten million, two hundred eleven thousand, eleven".