222004266 has 48 divisors (see below), whose sum is σ = 490904064. Its totient is φ = 66880000.

The previous prime is 222004261. The next prime is 222004271. The reversal of 222004266 is 662400222.

It is an interprime number because it is at equal distance from previous prime (222004261) and next prime (222004271).

It is not an unprimeable number, because it can be changed into a prime (222004261) 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 in 23 ways as a sum of consecutive naturals, for example, 137866 + ... + 139466.

It is an arithmetic number, because the mean of its divisors is an integer number (10227168).

Almost surely, 2^222004266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222004266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245452032).

222004266 is an abundant number, since it is smaller than the sum of its proper divisors (268899798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222004266 is a wasteful number, since it uses less digits than its factorization.

222004266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819 (or 1808 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 222004266 is about 14899.8075826502. The cubic root of 222004266 is about 605.5087731306.

Adding to 222004266 its reverse (662400222), we get a palindrome (884404488).

The spelling of 222004266 in words is "two hundred twenty-two million, four thousand, two hundred sixty-six".