33033212013221 has 16 divisors (see below), whose sum is σ = 39739449859200. Its totient is φ = 26823794614848.

The previous prime is 33033212013199. The next prime is 33033212013239. The reversal of 33033212013221 is 12231021233033.

It is not a de Polignac number, because 33033212013221 - 2¹⁰ = 33033212012197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33033212010221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23527631 + ... + 24892083.

It is an arithmetic number, because the mean of its divisors is an integer number (2483715616200).

Almost surely, 2^{33033212013221} is an apocalyptic number.

It is an amenable number.

33033212013221 is a deficient number, since it is larger than the sum of its proper divisors (6706237845979).

33033212013221 is a wasteful number, since it uses less digits than its factorization.

33033212013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546508.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 33033212013221 its reverse (12231021233033), we get a palindrome (45264233246254).

The spelling of 33033212013221 in words is "thirty-three trillion, thirty-three billion, two hundred twelve million, thirteen thousand, two hundred twenty-one".