111111011122112 has 14 divisors (see below), whose sum is σ = 220485912695568. Its totient is φ = 55555505561024.

The previous prime is 111111011122079. The next prime is 111111011122117. The reversal of 111111011122112 is 211221110111111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111011122117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 868054774328 + ... + 868054774455.

Almost surely, 2^{111111011122112} is an apocalyptic number.

It is an amenable number.

111111011122112 is a deficient number, since it is larger than the sum of its proper divisors (109374901573456).

111111011122112 is an equidigital number, since it uses as much as digits as its factorization.

111111011122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736109548795 (or 1736109548785 counting only the distinct ones).

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

Adding to 111111011122112 its reverse (211221110111111), we get a palindrome (322332121233223).

The spelling of 111111011122112 in words is "one hundred eleven trillion, one hundred eleven billion, eleven million, one hundred twenty-two thousand, one hundred twelve".