33000313220 has 36 divisors (see below), whose sum is σ = 80615053260. Its totient is φ = 11314392768.

The previous prime is 33000313217. The next prime is 33000313231. The reversal of 33000313220 is 2231300033.

It can be written as a sum of positive squares in 2 ways, for example, as 21786350404 + 11213962816 = 147602^2 + 105896^2 .

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 11 ways as a sum of consecutive naturals, for example, 16835915 + ... + 16837874.

It is an arithmetic number, because the mean of its divisors is an integer number (2239307035).

Almost surely, 2^33000313220 is an apocalyptic number.

It is an amenable number.

33000313220 is an abundant number, since it is smaller than the sum of its proper divisors (47614740040).

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

33000313220 is a wasteful number, since it uses less digits than its factorization.

33000313220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33673812 (or 33673803 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 33000313220 its reverse (2231300033), we get a palindrome (35231613253).

The spelling of 33000313220 in words is "thirty-three billion, three hundred thirteen thousand, two hundred twenty".