111222012032 has 128 divisors (see below), whose sum is σ = 239512075200. Its totient is φ = 51252920320.

The previous prime is 111222012023. The next prime is 111222012043. The reversal of 111222012032 is 230210222111.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 111222012032.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36074363 + ... + 36077445.

Almost surely, 2^111222012032 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 111222012032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119756037600).

111222012032 is an abundant number, since it is smaller than the sum of its proper divisors (128290063168).

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

111222012032 is a wasteful number, since it uses less digits than its factorization.

111222012032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3454 (or 3442 counting only the distinct ones).

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

Adding to 111222012032 its reverse (230210222111), we get a palindrome (341432234143).

The spelling of 111222012032 in words is "one hundred eleven billion, two hundred twenty-two million, twelve thousand, thirty-two".