33220133 has 2 divisors, whose sum is σ = 33220134. Its totient is φ = 33220132.

The previous prime is 33220129. The next prime is 33220139. The reversal of 33220133 is 33102233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26553409 + 6666724 = 5153^2 + 2582^2 .

It is an emirp because it is prime and its reverse (33102233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33220133 - 2² = 33220129 is a prime.

It is a super-2 number, since 2×33220133² = 2207154473075378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33220139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16610066 + 16610067.

It is an arithmetic number, because the mean of its divisors is an integer number (16610067).

Almost surely, 2^33220133 is an apocalyptic number.

It is an amenable number.

33220133 is a deficient number, since it is larger than the sum of its proper divisors (1).

33220133 is an equidigital number, since it uses as much as digits as its factorization.

33220133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 33220133 is about 5763.6909181531. The cubic root of 33220133 is about 321.4650692853.

Adding to 33220133 its reverse (33102233), we get a palindrome (66322366).

The spelling of 33220133 in words is "thirty-three million, two hundred twenty thousand, one hundred thirty-three".