111315222 has 20 divisors (see below), whose sum is σ = 249428916. Its totient is φ = 37105020.

The previous prime is 111315221. The next prime is 111315299. The reversal of 111315222 is 222513111.

111315222 is a `hidden beast` number, since 11 + 131 + 522 + 2 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 111315195 and 111315204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111315221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 343404 + ... + 343727.

Almost surely, 2^111315222 is an apocalyptic number.

111315222 is an abundant number, since it is smaller than the sum of its proper divisors (138113694).

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

111315222 is an equidigital number, since it uses as much as digits as its factorization.

111315222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687145 (or 687136 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 111315222 is about 10550.6029211605. The cubic root of 111315222 is about 481.0440555369.

Adding to 111315222 its reverse (222513111), we get a palindrome (333828333).

The spelling of 111315222 in words is "one hundred eleven million, three hundred fifteen thousand, two hundred twenty-two".