222245305 has 8 divisors (see below), whose sum is σ = 266789952. Its totient is φ = 177732528.

The previous prime is 222245279. The next prime is 222245311. The reversal of 222245305 is 503542222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222245305 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222245305.

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 7 ways as a sum of consecutive naturals, for example, 11874 + ... + 24196.

It is an arithmetic number, because the mean of its divisors is an integer number (33348744).

Almost surely, 2^222245305 is an apocalyptic number.

It is an amenable number.

222245305 is a deficient number, since it is larger than the sum of its proper divisors (44544647).

222245305 is a wasteful number, since it uses less digits than its factorization.

222245305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15935.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 222245305 is about 14907.8940497979. The cubic root of 222245305 is about 605.7278356467.

Adding to 222245305 its reverse (503542222), we get a palindrome (725787527).

The spelling of 222245305 in words is "two hundred twenty-two million, two hundred forty-five thousand, three hundred five".