22090213 has 2 divisors, whose sum is σ = 22090214. Its totient is φ = 22090212.

The previous prime is 22090207. The next prime is 22090219. The reversal of 22090213 is 31209022.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (22090207) and next prime (22090219).

It can be written as a sum of positive squares in only one way, i.e., 19377604 + 2712609 = 4402^2 + 1647^2 .

It is a cyclic number.

It is not a de Polignac number, because 22090213 - 2⁵ = 22090181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22090219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11045106 + 11045107.

It is an arithmetic number, because the mean of its divisors is an integer number (11045107).

Almost surely, 2^22090213 is an apocalyptic number.

It is an amenable number.

22090213 is a deficient number, since it is larger than the sum of its proper divisors (1).

22090213 is an equidigital number, since it uses as much as digits as its factorization.

22090213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 22090213 is about 4700.0226595198. The cubic root of 22090213 is about 280.5864113122.

Adding to 22090213 its reverse (31209022), we get a palindrome (53299235).

The spelling of 22090213 in words is "twenty-two million, ninety thousand, two hundred thirteen".