111224242 has 4 divisors (see below), whose sum is σ = 166836366. Its totient is φ = 55612120.

The previous prime is 111224227. The next prime is 111224261. The reversal of 111224242 is 242422111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 80299521 + 30924721 = 8961^2 + 5561^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27806059 + ... + 27806062.

Almost surely, 2^111224242 is an apocalyptic number.

111224242 is a deficient number, since it is larger than the sum of its proper divisors (55612124).

111224242 is an equidigital number, since it uses as much as digits as its factorization.

111224242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55612123.

The product of its digits is 256, while the sum is 19.

The square root of 111224242 is about 10546.2904378744. The cubic root of 111224242 is about 480.9129644000.

Adding to 111224242 its reverse (242422111), we get a palindrome (353646353).

The spelling of 111224242 in words is "one hundred eleven million, two hundred twenty-four thousand, two hundred forty-two".