33065221 has 8 divisors (see below), whose sum is σ = 40011840. Its totient is φ = 26674368.

The previous prime is 33065183. The next prime is 33065231. The reversal of 33065221 is 12256033.

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

It is not a de Polignac number, because 33065221 - 2⁷ = 33065093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33065192 and 33065201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33065231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138811 + ... + 139048.

It is an arithmetic number, because the mean of its divisors is an integer number (5001480).

Almost surely, 2^33065221 is an apocalyptic number.

It is an amenable number.

33065221 is a deficient number, since it is larger than the sum of its proper divisors (6946619).

33065221 is a wasteful number, since it uses less digits than its factorization.

33065221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277883.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 33065221 is about 5750.2366038277. The cubic root of 33065221 is about 320.9646056542.

The spelling of 33065221 in words is "thirty-three million, sixty-five thousand, two hundred twenty-one".