33020133220 has 24 divisors (see below), whose sum is σ = 69434644608. Its totient is φ = 13190460000.

The previous prime is 33020133217. The next prime is 33020133247. The reversal of 33020133220 is 2233102033.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 1084186 + ... + 1114225.

It is an arithmetic number, because the mean of its divisors is an integer number (2893110192).

Almost surely, 2^33020133220 is an apocalyptic number.

It is an amenable number.

33020133220 is an abundant number, since it is smaller than the sum of its proper divisors (36414511388).

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

33020133220 is a wasteful number, since it uses less digits than its factorization.

33020133220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199171 (or 2199169 counting only the distinct ones).

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

Adding to 33020133220 its reverse (2233102033), we get a palindrome (35253235253).

The spelling of 33020133220 in words is "thirty-three billion, twenty million, one hundred thirty-three thousand, two hundred twenty".