111101111111222 has 8 divisors (see below), whose sum is σ = 166651749599400. Its totient is φ = 55550527911424.

The previous prime is 111101111111219. The next prime is 111101111111251. The reversal of 111101111111222 is 222111111101111.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 111101111111222.

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 3 ways as a sum of consecutive naturals, for example, 8367947 + ... + 17094582.

It is an arithmetic number, because the mean of its divisors is an integer number (20831468699925).

Almost surely, 2^{111101111111222} is an apocalyptic number.

111101111111222 is a deficient number, since it is larger than the sum of its proper divisors (55550638488178).

111101111111222 is a wasteful number, since it uses less digits than its factorization.

111101111111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27644190.

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

Adding to 111101111111222 its reverse (222111111101111), we get a palindrome (333212222212333).

The spelling of 111101111111222 in words is "one hundred eleven trillion, one hundred one billion, one hundred eleven million, one hundred eleven thousand, two hundred twenty-two".