111112101 has 8 divisors (see below), whose sum is σ = 164610560. Its totient is φ = 74074716.

The previous prime is 111112087. The next prime is 111112121. The reversal of 111112101 is 101211111.

It is not a de Polignac number, because 111112101 - 2⁶ = 111112037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2057605 + ... + 2057658.

It is an arithmetic number, because the mean of its divisors is an integer number (20576320).

Almost surely, 2^111112101 is an apocalyptic number.

It is an amenable number.

111112101 is a deficient number, since it is larger than the sum of its proper divisors (53498459).

111112101 is an equidigital number, since it uses as much as digits as its factorization.

111112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4115272 (or 4115266 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

The square root of 111112101 is about 10540.9724883428. The cubic root of 111112101 is about 480.7512844317.

Adding to 111112101 its reverse (101211111), we get a palindrome (212323212).

The spelling of 111112101 in words is "one hundred eleven million, one hundred twelve thousand, one hundred one".