211211032213 has 2 divisors, whose sum is σ = 211211032214. Its totient is φ = 211211032212.

The previous prime is 211211032199. The next prime is 211211032271. The reversal of 211211032213 is 312230112112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157686821604 + 53524210609 = 397098^2 + 231353^2 .

It is a cyclic number.

It is not a de Polignac number, because 211211032213 - 2⁹ = 211211031701 is a prime.

It is a super-2 number, since 2×211211032213² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211211032013) 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, 105605516106 + 105605516107.

It is an arithmetic number, because the mean of its divisors is an integer number (105605516107).

Almost surely, 2^211211032213 is an apocalyptic number.

It is an amenable number.

211211032213 is a deficient number, since it is larger than the sum of its proper divisors (1).

211211032213 is an equidigital number, since it uses as much as digits as its factorization.

211211032213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 211211032213 its reverse (312230112112), we get a palindrome (523441144325).

The spelling of 211211032213 in words is "two hundred eleven billion, two hundred eleven million, thirty-two thousand, two hundred thirteen".