33102221021 has 8 divisors (see below), whose sum is σ = 35415664800. Its totient is φ = 30845899440.

The previous prime is 33102220979. The next prime is 33102221039. The reversal of 33102221021 is 12012220133.

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 33102221021 - 2²⁶ = 33035112157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33102221521) 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, 14279351 + ... + 14281668.

It is an arithmetic number, because the mean of its divisors is an integer number (4426958100).

Almost surely, 2^33102221021 is an apocalyptic number.

It is an amenable number.

33102221021 is a deficient number, since it is larger than the sum of its proper divisors (2313443779).

33102221021 is a wasteful number, since it uses less digits than its factorization.

33102221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28561099.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 33102221021 its reverse (12012220133), we get a palindrome (45114441154).

The spelling of 33102221021 in words is "thirty-three billion, one hundred two million, two hundred twenty-one thousand, twenty-one".