33220333 has 4 divisors (see below), whose sum is σ = 33340540. Its totient is φ = 33100128.

The previous prime is 33220331. The next prime is 33220337. The reversal of 33220333 is 33302233.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33302233 = 383 ⋅86951.

It can be written as a sum of positive squares in 2 ways, for example, as 6985449 + 26234884 = 2643^2 + 5122^2 .

It is a cyclic number.

It is not a de Polignac number, because 33220333 - 2¹ = 33220331 is a prime.

It is a super-2 number, since 2×33220333² = 2207181049261778, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33220333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33220331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59688 + ... + 60241.

It is an arithmetic number, because the mean of its divisors is an integer number (8335135).

Almost surely, 2^33220333 is an apocalyptic number.

It is an amenable number.

33220333 is a deficient number, since it is larger than the sum of its proper divisors (120207).

33220333 is a wasteful number, since it uses less digits than its factorization.

33220333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120206.

The product of its (nonzero) digits is 972, while the sum is 19.

The square root of 33220333 is about 5763.7082681204. The cubic root of 33220333 is about 321.4657144050.

Adding to 33220333 its reverse (33302233), we get a palindrome (66522566).

The spelling of 33220333 in words is "thirty-three million, two hundred twenty thousand, three hundred thirty-three".