111101110021109 has 16 divisors (see below), whose sum is σ = 121441482000384. Its totient is φ = 101027468678400.

The previous prime is 111101110021093. The next prime is 111101110021129. The reversal of 111101110021109 is 901120011101111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111101110021109 - 2⁴ = 111101110021093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111101110021129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216951572 + ... + 217463069.

It is an arithmetic number, because the mean of its divisors is an integer number (7590092625024).

Almost surely, 2^{111101110021109} is an apocalyptic number.

It is an amenable number.

111101110021109 is a deficient number, since it is larger than the sum of its proper divisors (10340371979275).

111101110021109 is a wasteful number, since it uses less digits than its factorization.

111101110021109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434414948.

The product of its (nonzero) digits is 18, while the sum is 20.

The spelling of 111101110021109 in words is "one hundred eleven trillion, one hundred one billion, one hundred ten million, twenty-one thousand, one hundred nine".