33012223120 has 20 divisors (see below), whose sum is σ = 76753418940. Its totient is φ = 13204889216.

The previous prime is 33012223099. The next prime is 33012223129. The reversal of 33012223120 is 2132221033.

It can be written as a sum of positive squares in 2 ways, for example, as 3684975616 + 29327247504 = 60704^2 + 171252^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (33012223129) 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, 206326315 + ... + 206326474.

It is an arithmetic number, because the mean of its divisors is an integer number (3837670947).

Almost surely, 2^33012223120 is an apocalyptic number.

It is an amenable number.

33012223120 is an abundant number, since it is smaller than the sum of its proper divisors (43741195820).

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

33012223120 is a wasteful number, since it uses less digits than its factorization.

33012223120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412652802 (or 412652796 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 33012223120 its reverse (2132221033), we get a palindrome (35144444153).

The spelling of 33012223120 in words is "thirty-three billion, twelve million, two hundred twenty-three thousand, one hundred twenty".