111342220 has 24 divisors (see below), whose sum is σ = 255075408. Its totient is φ = 40488000.

The previous prime is 111342211. The next prime is 111342239. The reversal of 111342220 is 22243111.

It is a junction number, because it is equal to n+sod(n) for n = 111342194 and 111342203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252831 + ... + 253270.

It is an arithmetic number, because the mean of its divisors is an integer number (10628142).

Almost surely, 2^111342220 is an apocalyptic number.

111342220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111342220 is an abundant number, since it is smaller than the sum of its proper divisors (143733188).

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

111342220 is a wasteful number, since it uses less digits than its factorization.

111342220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506121 (or 506119 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 111342220 is about 10551.8822965384. The cubic root of 111342220 is about 481.0829426342.

Adding to 111342220 its reverse (22243111), we get a palindrome (133585331).

The spelling of 111342220 in words is "one hundred eleven million, three hundred forty-two thousand, two hundred twenty".