111220104 has 32 divisors (see below), whose sum is σ = 287640000. Its totient is φ = 35794752.

The previous prime is 111220097. The next prime is 111220117. The reversal of 111220104 is 401022111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 111220104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79204 + ... + 80595.

It is an arithmetic number, because the mean of its divisors is an integer number (8988750).

Almost surely, 2^111220104 is an apocalyptic number.

It is an amenable number.

111220104 is an abundant number, since it is smaller than the sum of its proper divisors (176419896).

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

111220104 is a wasteful number, since it uses less digits than its factorization.

111220104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159837 (or 159833 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 111220104 is about 10546.0942533243. The cubic root of 111220104 is about 480.9070003449.

Adding to 111220104 its reverse (401022111), we get a palindrome (512242215).

The spelling of 111220104 in words is "one hundred eleven million, two hundred twenty thousand, one hundred four".