222343213 has 2 divisors, whose sum is σ = 222343214. Its totient is φ = 222343212.

The previous prime is 222343201. The next prime is 222343223. The reversal of 222343213 is 312343222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154082569 + 68260644 = 12413^2 + 8262^2 .

It is a cyclic number.

It is not a de Polignac number, because 222343213 - 2¹³ = 222335021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222343223) 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, 111171606 + 111171607.

It is an arithmetic number, because the mean of its divisors is an integer number (111171607).

Almost surely, 2^222343213 is an apocalyptic number.

It is an amenable number.

222343213 is a deficient number, since it is larger than the sum of its proper divisors (1).

222343213 is an equidigital number, since it uses as much as digits as its factorization.

222343213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 22.

The square root of 222343213 is about 14911.1774518312. The cubic root of 222343213 is about 605.8167717500.

Adding to 222343213 its reverse (312343222), we get a palindrome (534686435).

Subtracting 222343213 from its reverse (312343222), we obtain a palindrome (90000009).

The spelling of 222343213 in words is "two hundred twenty-two million, three hundred forty-three thousand, two hundred thirteen".