222112111 has 8 divisors (see below), whose sum is σ = 239620304. Its totient is φ = 204664320.

The previous prime is 222112087. The next prime is 222112141. The reversal of 222112111 is 111211222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222112111 - 2⁷ = 222111983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222112091 and 222112100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222112141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7305 + ... + 22306.

It is an arithmetic number, because the mean of its divisors is an integer number (29952538).

Almost surely, 2^222112111 is an apocalyptic number.

222112111 is a deficient number, since it is larger than the sum of its proper divisors (17508193).

222112111 is a wasteful number, since it uses less digits than its factorization.

222112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30201.

The product of its digits is 16, while the sum is 13.

The square root of 222112111 is about 14903.4261497147. The cubic root of 222112111 is about 605.6068050644.

Adding to 222112111 its reverse (111211222), we get a palindrome (333323333).

The spelling of 222112111 in words is "two hundred twenty-two million, one hundred twelve thousand, one hundred eleven".