111120110211121 has 4 divisors (see below), whose sum is σ = 121221938412144. Its totient is φ = 101018282010100.

The previous prime is 111120110211119. The next prime is 111120110211133. The reversal of 111120110211121 is 121112011021111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111120110211121 - 2¹ = 111120110211119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111120110211095 and 111120110211104.

It is not an unprimeable number, because it can be changed into a prime (111120117211121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050914100495 + ... + 5050914100516.

It is an arithmetic number, because the mean of its divisors is an integer number (30305484603036).

Almost surely, 2^{111120110211121} is an apocalyptic number.

111120110211121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111120110211121 is a deficient number, since it is larger than the sum of its proper divisors (10101828201023).

111120110211121 is a wasteful number, since it uses less digits than its factorization.

111120110211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10101828201022.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 111120110211121 its reverse (121112011021111), we get a palindrome (232232121232232).

The spelling of 111120110211121 in words is "one hundred eleven trillion, one hundred twenty billion, one hundred ten million, two hundred eleven thousand, one hundred twenty-one".