33213205 has 8 divisors (see below), whose sum is σ = 40120704. Its totient is φ = 26394000.

The previous prime is 33213203. The next prime is 33213211. The reversal of 33213205 is 50231233.

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

It is not a de Polignac number, because 33213205 - 2¹ = 33213203 is a prime.

It is a super-2 number, since 2×33213205² = 2206233972744050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33213203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21241 + ... + 22750.

It is an arithmetic number, because the mean of its divisors is an integer number (5015088).

Almost surely, 2^33213205 is an apocalyptic number.

It is an amenable number.

33213205 is a deficient number, since it is larger than the sum of its proper divisors (6907499).

33213205 is a wasteful number, since it uses less digits than its factorization.

33213205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44147.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 33213205 is about 5763.0898830402. The cubic root of 33213205 is about 321.4427207410.

Adding to 33213205 its reverse (50231233), we get a palindrome (83444438).

The spelling of 33213205 in words is "thirty-three million, two hundred thirteen thousand, two hundred five".