33135221200 has 30 divisors (see below), whose sum is σ = 79607369894. Its totient is φ = 13254088320.

The previous prime is 33135221191. The next prime is 33135221213. The reversal of 33135221200 is 212253133.

It can be written as a sum of positive squares in 3 ways, for example, as 4854744976 + 28280476224 = 69676^2 + 168168^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41418627 + ... + 41419426.

Almost surely, 2^33135221200 is an apocalyptic number.

It is an amenable number.

33135221200 is an abundant number, since it is smaller than the sum of its proper divisors (46472148694).

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

33135221200 is a wasteful number, since it uses less digits than its factorization.

33135221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82838071 (or 82838060 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 33135221200 its reverse (212253133), we get a palindrome (33347474333).

The spelling of 33135221200 in words is "thirty-three billion, one hundred thirty-five million, two hundred twenty-one thousand, two hundred".