33121219 has 24 divisors (see below), whose sum is σ = 38223360. Its totient is φ = 28562688.

The previous prime is 33121213. The next prime is 33121247. The reversal of 33121219 is 91212133.

It is not a de Polignac number, because 33121219 - 2¹¹ = 33119171 is a prime.

It is a super-2 number, since 2×33121219² = 2194030296091922, 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 33121219.

It is not an unprimeable number, because it can be changed into a prime (33121213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 260734 + ... + 260860.

It is an arithmetic number, because the mean of its divisors is an integer number (1592640).

Almost surely, 2^33121219 is an apocalyptic number.

33121219 is a deficient number, since it is larger than the sum of its proper divisors (5102141).

33121219 is a wasteful number, since it uses less digits than its factorization.

33121219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 196 counting only the distinct ones).

The product of its digits is 324, while the sum is 22.

The square root of 33121219 is about 5755.1037349469. The cubic root of 33121219 is about 321.1456946115.

The spelling of 33121219 in words is "thirty-three million, one hundred twenty-one thousand, two hundred nineteen".