111100201201111 has 4 divisors (see below), whose sum is σ = 111187202143032. Its totient is φ = 111013200259192.

The previous prime is 111100201201103. The next prime is 111100201201117. The reversal of 111100201201111 is 111102102001111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111100201201111 - 2³ = 111100201201103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111100201201091 and 111100201201100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100201201117) 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 3 ways as a sum of consecutive naturals, for example, 43500469045 + ... + 43500471598.

It is an arithmetic number, because the mean of its divisors is an integer number (27796800535758).

Almost surely, 2^{111100201201111} is an apocalyptic number.

111100201201111 is a deficient number, since it is larger than the sum of its proper divisors (87000941921).

111100201201111 is an equidigital number, since it uses as much as digits as its factorization.

111100201201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87000941920.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111100201201111 its reverse (111102102001111), we get a palindrome (222202303202222).

The spelling of 111100201201111 in words is "one hundred eleven trillion, one hundred billion, two hundred one million, two hundred one thousand, one hundred eleven".