222240313 has 2 divisors, whose sum is σ = 222240314. Its totient is φ = 222240312.

The previous prime is 222240301. The next prime is 222240331. The reversal of 222240313 is 313042222.

Together with next prime (222240331) 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., 159466384 + 62773929 = 12628^2 + 7923^2 .

It is a cyclic number.

It is not a de Polignac number, because 222240313 - 2¹⁷ = 222109241 is a prime.

It is not a weakly prime, because it can be changed into another prime (222240353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111120156 + 111120157.

It is an arithmetic number, because the mean of its divisors is an integer number (111120157).

Almost surely, 2^222240313 is an apocalyptic number.

It is an amenable number.

222240313 is a deficient number, since it is larger than the sum of its proper divisors (1).

222240313 is an equidigital number, since it uses as much as digits as its factorization.

222240313 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 222240313 is about 14907.7266207829. The cubic root of 222240313 is about 605.7233003938.

Adding to 222240313 its reverse (313042222), we get a palindrome (535282535).

The spelling of 222240313 in words is "two hundred twenty-two million, two hundred forty thousand, three hundred thirteen".