33012045220 has 72 divisors (see below), whose sum is σ = 87086365632. Its totient is φ = 10289463360.

The previous prime is 33012045163. The next prime is 33012045229. The reversal of 33012045220 is 2254021033.

It is a super-3 number, since 3×33012045220³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 33012045191 and 33012045200.

It is not an unprimeable number, because it can be changed into a prime (33012045229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 957442 + ... + 991321.

It is an arithmetic number, because the mean of its divisors is an integer number (1209532856).

Almost surely, 2^33012045220 is an apocalyptic number.

It is an amenable number.

33012045220 is an abundant number, since it is smaller than the sum of its proper divisors (54074320412).

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

33012045220 is a wasteful number, since it uses less digits than its factorization.

33012045220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948801 (or 1948788 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 33012045220 its reverse (2254021033), we get a palindrome (35266066253).

The spelling of 33012045220 in words is "thirty-three billion, twelve million, forty-five thousand, two hundred twenty".