33220019 has 8 divisors (see below), whose sum is σ = 38005248. Its totient is φ = 28444680.

The previous prime is 33220013. The next prime is 33220049. The reversal of 33220019 is 91002233.

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

It is a cyclic number.

It is not a de Polignac number, because 33220019 - 2²⁰ = 32171443 is a prime.

It is a super-2 number, since 2×33220019² = 2207139324720722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33220013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7334 + ... + 10964.

It is an arithmetic number, because the mean of its divisors is an integer number (4750656).

Almost surely, 2^33220019 is an apocalyptic number.

33220019 is a deficient number, since it is larger than the sum of its proper divisors (4785229).

33220019 is a wasteful number, since it uses less digits than its factorization.

33220019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4945.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 33220019 is about 5763.6810286483. The cubic root of 33220019 is about 321.4647015659.

It can be divided in two parts, 33 and 220019, that multiplied together give a palindrome (7260627).

The spelling of 33220019 in words is "thirty-three million, two hundred twenty thousand, nineteen".