33222305 has 8 divisors (see below), whose sum is σ = 40039272. Its totient is φ = 26462848.

The previous prime is 33222289. The next prime is 33222331. The reversal of 33222305 is 50322233.

It can be written as a sum of positive squares in 4 ways, for example, as 4363921 + 28858384 = 2089^2 + 5372^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 33222305 - 2⁴ = 33222289 is a prime.

It is a super-2 number, since 2×33222305² = 2207443099026050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13094 + ... + 15423.

It is an arithmetic number, because the mean of its divisors is an integer number (5004909).

Almost surely, 2^33222305 is an apocalyptic number.

It is an amenable number.

33222305 is a deficient number, since it is larger than the sum of its proper divisors (6816967).

33222305 is a wasteful number, since it uses less digits than its factorization.

33222305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28755.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 33222305 is about 5763.8793360028. The cubic root of 33222305 is about 321.4720751464.

Adding to 33222305 its reverse (50322233), we get a palindrome (83544538).

The spelling of 33222305 in words is "thirty-three million, two hundred twenty-two thousand, three hundred five".