33011013221112 has 128 divisors (see below), whose sum is σ = 85680279720000. Its totient is φ = 10586093285376.

The previous prime is 33011013221051. The next prime is 33011013221143. The reversal of 33011013221112 is 21112231011033.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249584214 + ... + 249716442.

Almost surely, 2^{33011013221112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33011013221112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42840139860000).

33011013221112 is an abundant number, since it is smaller than the sum of its proper divisors (52669266498888).

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

33011013221112 is a wasteful number, since it uses less digits than its factorization.

33011013221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133553 (or 133549 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 33011013221112 its reverse (21112231011033), we get a palindrome (54123244232145).

The spelling of 33011013221112 in words is "thirty-three trillion, eleven billion, thirteen million, two hundred twenty-one thousand, one hundred twelve".