33331222 has 8 divisors (see below), whose sum is σ = 50106672. Its totient is φ = 16629000.

The previous prime is 33331217. The next prime is 33331241. The reversal of 33331222 is 22213333.

It is a happy number.

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

It is a super-2 number, since 2×33331222² = 2221940720026568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33331222.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 17154 + ... + 18997.

It is an arithmetic number, because the mean of its divisors is an integer number (6263334).

Almost surely, 2^33331222 is an apocalyptic number.

33331222 is a deficient number, since it is larger than the sum of its proper divisors (16775450).

33331222 is a wasteful number, since it uses less digits than its factorization.

33331222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36614.

The product of its digits is 648, while the sum is 19.

The square root of 33331222 is about 5773.3198421705. The cubic root of 33331222 is about 321.8229998253.

Adding to 33331222 its reverse (22213333), we get a palindrome (55544555).

The spelling of 33331222 in words is "thirty-three million, three hundred thirty-one thousand, two hundred twenty-two".