111221220032 has 84 divisors (see below), whose sum is σ = 239143754376. Its totient is φ = 51299389440.

The previous prime is 111221220013. The next prime is 111221220067. The reversal of 111221220032 is 230022122111.

111221220032 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25642568 + ... + 25646904.

Almost surely, 2^111221220032 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 111221220032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119571877188).

111221220032 is an abundant number, since it is smaller than the sum of its proper divisors (127922534344).

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

111221220032 is a wasteful number, since it uses less digits than its factorization.

111221220032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6746 (or 6723 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 111221220032 its reverse (230022122111), we get a palindrome (341243342143).

The spelling of 111221220032 in words is "one hundred eleven billion, two hundred twenty-one million, two hundred twenty thousand, thirty-two".