33020021332220 has 96 divisors (see below), whose sum is σ = 75119726965248. Its totient is φ = 12119780293632.

The previous prime is 33020021332171. The next prime is 33020021332247. The reversal of 33020021332220 is 2223312002033.

It is a super-2 number, since 2×33020021332220² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 29697557 + ... + 30789363.

It is an arithmetic number, because the mean of its divisors is an integer number (782497155888).

Almost surely, 2^{33020021332220} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33020021332220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37559863482624).

33020021332220 is an abundant number, since it is smaller than the sum of its proper divisors (42099705633028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33020021332220 is a wasteful number, since it uses less digits than its factorization.

33020021332220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092519 (or 1092517 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 33020021332220 its reverse (2223312002033), we get a palindrome (35243333334253).

The spelling of 33020021332220 in words is "thirty-three trillion, twenty billion, twenty-one million, three hundred thirty-two thousand, two hundred twenty".