111222111104 has 128 divisors (see below), whose sum is σ = 240921021600. Its totient is φ = 50840764416.

The previous prime is 111222111083. The next prime is 111222111107. The reversal of 111222111104 is 401111222111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222111107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93228332 + ... + 93229524.

Almost surely, 2^111222111104 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 111222111104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120460510800).

111222111104 is an abundant number, since it is smaller than the sum of its proper divisors (129698910496).

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

111222111104 is a wasteful number, since it uses less digits than its factorization.

111222111104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712 (or 1700 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111222111104 its reverse (401111222111), we get a palindrome (512333333215).

The spelling of 111222111104 in words is "one hundred eleven billion, two hundred twenty-two million, one hundred eleven thousand, one hundred four".