111111101222 has 16 divisors (see below), whose sum is σ = 181824141312. Its totient is φ = 50503386120.

The previous prime is 111111101221. The next prime is 111111101303. The reversal of 111111101222 is 222101111111.

It is a junction number, because it is equal to n+sod(n) for n = 111111101197 and 111111101206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111101221) by changing a digit.

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, 819863 + ... + 945725.

It is an arithmetic number, because the mean of its divisors is an integer number (11364008832).

Almost surely, 2^111111101222 is an apocalyptic number.

111111101222 is a deficient number, since it is larger than the sum of its proper divisors (70713040090).

111111101222 is a wasteful number, since it uses less digits than its factorization.

111111101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166003.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111111101222 its reverse (222101111111), we get a palindrome (333212212333).

The spelling of 111111101222 in words is "one hundred eleven billion, one hundred eleven million, one hundred one thousand, two hundred twenty-two".