33012303220 has 24 divisors (see below), whose sum is σ = 74658594024. Its totient is φ = 12189158016.

The previous prime is 33012303211. The next prime is 33012303221. The reversal of 33012303220 is 2230321033.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 320356 + 33011982864 = 566^2 + 181692^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33012303221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63484939 + ... + 63485458.

It is an arithmetic number, because the mean of its divisors is an integer number (3110774751).

Almost surely, 2^33012303220 is an apocalyptic number.

It is an amenable number.

33012303220 is an abundant number, since it is smaller than the sum of its proper divisors (41646290804).

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

33012303220 is a wasteful number, since it uses less digits than its factorization.

33012303220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126970419 (or 126970417 counting only the distinct ones).

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

Adding to 33012303220 its reverse (2230321033), we get a palindrome (35242624253).

The spelling of 33012303220 in words is "thirty-three billion, twelve million, three hundred three thousand, two hundred twenty".