111111111110222 has 16 divisors (see below), whose sum is σ = 176515640931600. Its totient is φ = 52274232751488.

The previous prime is 111111111110203. The next prime is 111111111110249. The reversal of 111111111110222 is 222011111111111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 111111111110222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417019472 + ... + 417285827.

It is an arithmetic number, because the mean of its divisors is an integer number (11032227558225).

Almost surely, 2^{111111111110222} is an apocalyptic number.

111111111110222 is a deficient number, since it is larger than the sum of its proper divisors (65404529821378).

111111111110222 is a wasteful number, since it uses less digits than its factorization.

111111111110222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834309235.

The product of its (nonzero) digits is 8, while the sum is 17.

Adding to 111111111110222 its reverse (222011111111111), we get a palindrome (333122222221333).

The spelling of 111111111110222 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred eleven million, one hundred ten thousand, two hundred twenty-two".