33012223 has 2 divisors, whose sum is σ = 33012224. Its totient is φ = 33012222.

The previous prime is 33012209. The next prime is 33012247. The reversal of 33012223 is 32221033.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 33012223 - 2⁵ = 33012191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33012197 and 33012206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33012523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16506111 + 16506112.

It is an arithmetic number, because the mean of its divisors is an integer number (16506112).

Almost surely, 2^33012223 is an apocalyptic number.

33012223 is a deficient number, since it is larger than the sum of its proper divisors (1).

33012223 is an equidigital number, since it uses as much as digits as its factorization.

33012223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 33012223 is about 5745.6264236374. The cubic root of 33012223 is about 320.7930298204.

Adding to 33012223 its reverse (32221033), we get a palindrome (65233256).

The spelling of 33012223 in words is "thirty-three million, twelve thousand, two hundred twenty-three".