33221030209 has 4 divisors (see below), whose sum is σ = 33340962004. Its totient is φ = 33101098416.

The previous prime is 33221030207. The next prime is 33221030221. The reversal of 33221030209 is 90203012233.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90203012233 = 5851 ⋅15416683.

It can be written as a sum of positive squares in 2 ways, for example, as 2517229584 + 30703800625 = 50172^2 + 175225^2 .

It is a cyclic number.

It is not a de Polignac number, because 33221030209 - 2¹ = 33221030207 is a prime.

It is a super-2 number, since 2×33221030209² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33221030207) 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, 59965482 + ... + 59966035.

It is an arithmetic number, because the mean of its divisors is an integer number (8335240501).

Almost surely, 2^33221030209 is an apocalyptic number.

It is an amenable number.

33221030209 is a deficient number, since it is larger than the sum of its proper divisors (119931795).

33221030209 is a wasteful number, since it uses less digits than its factorization.

33221030209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119931794.

The product of its (nonzero) digits is 1944, while the sum is 25.

The spelling of 33221030209 in words is "thirty-three billion, two hundred twenty-one million, thirty thousand, two hundred nine".