422302213 has 2 divisors, whose sum is σ = 422302214. Its totient is φ = 422302212.

The previous prime is 422302157. The next prime is 422302267. The reversal of 422302213 is 312203224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 376631649 + 45670564 = 19407^2 + 6758^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422302213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422392213) 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, 211151106 + 211151107.

It is an arithmetic number, because the mean of its divisors is an integer number (211151107).

Almost surely, 2^422302213 is an apocalyptic number.

It is an amenable number.

422302213 is a deficient number, since it is larger than the sum of its proper divisors (1).

422302213 is an equidigital number, since it uses as much as digits as its factorization.

422302213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 422302213 is about 20549.9930170304. The cubic root of 422302213 is about 750.2530778518.

Adding to 422302213 its reverse (312203224), we get a palindrome (734505437).

The spelling of 422302213 in words is "four hundred twenty-two million, three hundred two thousand, two hundred thirteen".