33002120221 has 8 divisors (see below), whose sum is σ = 37757315520. Its totient is φ = 28257076608.

The previous prime is 33002120209. The next prime is 33002120227. The reversal of 33002120221 is 12202120033.

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 33002120221 - 2³¹ = 30854636573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33002120195 and 33002120204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33002120227) 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, 2530951 + ... + 2543956.

It is an arithmetic number, because the mean of its divisors is an integer number (4719664440).

Almost surely, 2^33002120221 is an apocalyptic number.

It is an amenable number.

33002120221 is a deficient number, since it is larger than the sum of its proper divisors (4755195299).

33002120221 is an equidigital number, since it uses as much as digits as its factorization.

33002120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5075843.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 33002120221 its reverse (12202120033), we get a palindrome (45204240254).

The spelling of 33002120221 in words is "thirty-three billion, two million, one hundred twenty thousand, two hundred twenty-one".