222230705 has 4 divisors (see below), whose sum is σ = 266676852. Its totient is φ = 177784560.

The previous prime is 222230641. The next prime is 222230717. The reversal of 222230705 is 507032222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 507032222 = 2 ⋅253516111.

It can be written as a sum of positive squares in 2 ways, for example, as 88435216 + 133795489 = 9404^2 + 11567^2 .

It is not a de Polignac number, because 222230705 - 2⁶ = 222230641 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 22223066 + ... + 22223075.

It is an arithmetic number, because the mean of its divisors is an integer number (66669213).

Almost surely, 2^222230705 is an apocalyptic number.

It is an amenable number.

222230705 is a deficient number, since it is larger than the sum of its proper divisors (44446147).

222230705 is an equidigital number, since it uses as much as digits as its factorization.

222230705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44446146.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 222230705 is about 14907.4043682997. The cubic root of 222230705 is about 605.7145712944.

Adding to 222230705 its reverse (507032222), we get a palindrome (729262927).

The spelling of 222230705 in words is "two hundred twenty-two million, two hundred thirty thousand, seven hundred five".