211110212213 has 2 divisors, whose sum is σ = 211110212214. Its totient is φ = 211110212212.

The previous prime is 211110212161. The next prime is 211110212237. The reversal of 211110212213 is 312212011112.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202047553009 + 9062659204 = 449497^2 + 95198^2 .

It is a cyclic number.

It is not a de Polignac number, because 211110212213 - 2¹⁶ = 211110146677 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211110212191 and 211110212200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211110212513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105555106106 + 105555106107.

It is an arithmetic number, because the mean of its divisors is an integer number (105555106107).

Almost surely, 2^211110212213 is an apocalyptic number.

It is an amenable number.

211110212213 is a deficient number, since it is larger than the sum of its proper divisors (1).

211110212213 is an equidigital number, since it uses as much as digits as its factorization.

211110212213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 211110212213 its reverse (312212011112), we get a palindrome (523322223325).

The spelling of 211110212213 in words is "two hundred eleven billion, one hundred ten million, two hundred twelve thousand, two hundred thirteen".