2216213 has 2 divisors, whose sum is σ = 2216214. Its totient is φ = 2216212.

The previous prime is 2216197. The next prime is 2216231. The reversal of 2216213 is 3126122.

Together with next prime (2216231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1249924 + 966289 = 1118^2 + 983^2 .

It is a cyclic number.

It is not a de Polignac number, because 2216213 - 2⁴ = 2216197 is a prime.

It is a super-2 number, since 2×2216213² = 9823200122738, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2216191 and 2216200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2216113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108106 + 1108107.

It is an arithmetic number, because the mean of its divisors is an integer number (1108107).

2^2216213 is an apocalyptic number.

It is an amenable number.

2216213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216213 is an equidigital number, since it uses as much as digits as its factorization.

2216213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 17.

The square root of 2216213 is about 1488.6950661569. The cubic root of 2216213 is about 130.3778553046.

Subtracting 2216213 from its reverse (3126122), we obtain a palindrome (909909).

The spelling of 2216213 in words is "two million, two hundred sixteen thousand, two hundred thirteen".