303222213 has 12 divisors (see below), whose sum is σ = 500557408. Its totient is φ = 173269800.

The previous prime is 303222209. The next prime is 303222223. The reversal of 303222213 is 312222303.

It is a happy number.

It is not a de Polignac number, because 303222213 - 2² = 303222209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303222223) 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 11 ways as a sum of consecutive naturals, for example, 2406463 + ... + 2406588.

Almost surely, 2^303222213 is an apocalyptic number.

It is an amenable number.

303222213 is a deficient number, since it is larger than the sum of its proper divisors (197335195).

303222213 is a wasteful number, since it uses less digits than its factorization.

303222213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4813064 (or 4813061 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 303222213 is about 17413.2769173410. The cubic root of 303222213 is about 671.8211484598.

Adding to 303222213 its reverse (312222303), we get a palindrome (615444516).

The spelling of 303222213 in words is "three hundred three million, two hundred twenty-two thousand, two hundred thirteen".