111304220 has 12 divisors (see below), whose sum is σ = 233738904. Its totient is φ = 44521680.

The previous prime is 111304213. The next prime is 111304231. The reversal of 111304220 is 22403111.

It is a junction number, because it is equal to n+sod(n) for n = 111304195 and 111304204.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2782586 + ... + 2782625.

It is an arithmetic number, because the mean of its divisors is an integer number (19478242).

Almost surely, 2^111304220 is an apocalyptic number.

111304220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111304220 is an abundant number, since it is smaller than the sum of its proper divisors (122434684).

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

111304220 is a wasteful number, since it uses less digits than its factorization.

111304220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5565220 (or 5565218 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 111304220 is about 10550.0815162728. The cubic root of 111304220 is about 481.0282067878.

Adding to 111304220 its reverse (22403111), we get a palindrome (133707331).

The spelling of 111304220 in words is "one hundred eleven million, three hundred four thousand, two hundred twenty".