111223044 has 144 divisors (see below), whose sum is σ = 317011968. Its totient is φ = 33965568.

The previous prime is 111223031. The next prime is 111223109. The reversal of 111223044 is 440322111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 875709 + ... + 875835.

It is an arithmetic number, because the mean of its divisors is an integer number (2201472).

Almost surely, 2^111223044 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 111223044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158505984).

111223044 is an abundant number, since it is smaller than the sum of its proper divisors (205788924).

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

111223044 is a wasteful number, since it uses less digits than its factorization.

111223044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 111223044 is about 10546.2336404993. The cubic root of 111223044 is about 480.9112377506.

Adding to 111223044 its reverse (440322111), we get a palindrome (551545155).

The spelling of 111223044 in words is "one hundred eleven million, two hundred twenty-three thousand, forty-four".