111102100101 has 24 divisors (see below), whose sum is σ = 170204673600. Its totient is φ = 69594685056.

The previous prime is 111102100049. The next prime is 111102100117. The reversal of 111102100101 is 101001201111.

It is not a de Polignac number, because 111102100101 - 2¹⁰ = 111102099077 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111102100141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 514495 + ... + 697788.

It is an arithmetic number, because the mean of its divisors is an integer number (7091861400).

Almost surely, 2^111102100101 is an apocalyptic number.

It is an amenable number.

111102100101 is a deficient number, since it is larger than the sum of its proper divisors (59102573499).

111102100101 is a wasteful number, since it uses less digits than its factorization.

111102100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212905 (or 1212902 counting only the distinct ones).

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

Adding to 111102100101 its reverse (101001201111), we get a palindrome (212103301212).

The spelling of 111102100101 in words is "one hundred eleven billion, one hundred two million, one hundred thousand, one hundred one".