22210213 has 2 divisors, whose sum is σ = 22210214. Its totient is φ = 22210212.

The previous prime is 22210207. The next prime is 22210267. The reversal of 22210213 is 31201222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15824484 + 6385729 = 3978^2 + 2527^2 .

It is a cyclic number.

It is not a de Polignac number, because 22210213 - 2¹³ = 22202021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22210193 and 22210202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22220213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105106 + 11105107.

It is an arithmetic number, because the mean of its divisors is an integer number (11105107).

Almost surely, 2^22210213 is an apocalyptic number.

It is an amenable number.

22210213 is a deficient number, since it is larger than the sum of its proper divisors (1).

22210213 is an equidigital number, since it uses as much as digits as its factorization.

22210213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 22210213 is about 4712.7712654021. The cubic root of 22210213 is about 281.0935677899.

Adding to 22210213 its reverse (31201222), we get a palindrome (53411435).

The spelling of 22210213 in words is "twenty-two million, two hundred ten thousand, two hundred thirteen".