222243205 has 4 divisors (see below), whose sum is σ = 266691852. Its totient is φ = 177794560.

The previous prime is 222243187. The next prime is 222243223. The reversal of 222243205 is 502342222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (222243187) and next prime (222243223).

It can be written as a sum of positive squares in 2 ways, for example, as 55368481 + 166874724 = 7441^2 + 12918^2 .

It is not a de Polignac number, because 222243205 - 2²¹ = 220146053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22224316 + ... + 22224325.

It is an arithmetic number, because the mean of its divisors is an integer number (66672963).

Almost surely, 2^222243205 is an apocalyptic number.

It is an amenable number.

222243205 is a deficient number, since it is larger than the sum of its proper divisors (44448647).

222243205 is an equidigital number, since it uses as much as digits as its factorization.

222243205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44448646.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 222243205 is about 14907.8236171481. The cubic root of 222243205 is about 605.7259277962.

Adding to 222243205 its reverse (502342222), we get a palindrome (724585427).

The spelling of 222243205 in words is "two hundred twenty-two million, two hundred forty-three thousand, two hundred five".