33030322021 has 4 divisors (see below), whose sum is σ = 33428277792. Its totient is φ = 32632366252.

The previous prime is 33030322007. The next prime is 33030322033. The reversal of 33030322021 is 12022303033.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33030322021 is a prime.

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 33030322021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33030322001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198977761 + ... + 198977926.

It is an arithmetic number, because the mean of its divisors is an integer number (8357069448).

Almost surely, 2^33030322021 is an apocalyptic number.

It is an amenable number.

33030322021 is a deficient number, since it is larger than the sum of its proper divisors (397955771).

33030322021 is an equidigital number, since it uses as much as digits as its factorization.

33030322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397955770.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 33030322021 its reverse (12022303033), we get a palindrome (45052625054).

The spelling of 33030322021 in words is "thirty-three billion, thirty million, three hundred twenty-two thousand, twenty-one".