111121201110121 has 8 divisors (see below), whose sum is σ = 111221900640000. Its totient is φ = 111020529560640.

The previous prime is 111121201110097. The next prime is 111121201110137. The reversal of 111121201110121 is 121011102121111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111121201110121 - 2³⁷ = 110983762156649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111121201110095 and 111121201110104.

It is not an unprimeable number, because it can be changed into a prime (111121201110181) 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, 955380 + ... + 14938378.

It is an arithmetic number, because the mean of its divisors is an integer number (13902737580000).

Almost surely, 2^{111121201110121} is an apocalyptic number.

It is an amenable number.

111121201110121 is a deficient number, since it is larger than the sum of its proper divisors (100699529879).

111121201110121 is a wasteful number, since it uses less digits than its factorization.

111121201110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13990199.

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

Adding to 111121201110121 its reverse (121011102121111), we get a palindrome (232132303231232).

The spelling of 111121201110121 in words is "one hundred eleven trillion, one hundred twenty-one billion, two hundred one million, one hundred ten thousand, one hundred twenty-one".