1112110121021 has 4 divisors (see below), whose sum is σ = 1177528363452. Its totient is φ = 1046691878592.

The previous prime is 1112110120981. The next prime is 1112110121029. The reversal of 1112110121021 is 1201210112111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 870095318521 + 242014802500 = 932789^2 + 491950^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112110121021 - 2¹⁰ = 1112110119997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112110120987 and 1112110121005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112110121029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32709121190 + ... + 32709121223.

It is an arithmetic number, because the mean of its divisors is an integer number (294382090863).

Almost surely, 2^{1112110121021} is an apocalyptic number.

It is an amenable number.

1112110121021 is a deficient number, since it is larger than the sum of its proper divisors (65418242431).

1112110121021 is an equidigital number, since it uses as much as digits as its factorization.

1112110121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65418242430.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1112110121021 its reverse (1201210112111), we get a palindrome (2313320233132).

The spelling of 1112110121021 in words is "one trillion, one hundred twelve billion, one hundred ten million, one hundred twenty-one thousand, twenty-one".