1112212110121 has 6 divisors (see below), whose sum is σ = 1293797760810. Its totient is φ = 953324665776.

The previous prime is 1112212110091. The next prime is 1112212110133. The reversal of 1112212110121 is 1210112122111.

It can be written as a sum of positive squares in only one way, i.e., 1004132260096 + 108079850025 = 1002064^2 + 328755^2 .

It is not a de Polignac number, because 1112212110121 - 2⁵ = 1112212110089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112212110095 and 1112212110104.

It is not an unprimeable number, because it can be changed into a prime (1112212110151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11349103116 + ... + 11349103213.

It is an arithmetic number, because the mean of its divisors is an integer number (215632960135).

Almost surely, 2^{1112212110121} is an apocalyptic number.

It is an amenable number.

1112212110121 is a deficient number, since it is larger than the sum of its proper divisors (181585650689).

1112212110121 is an equidigital number, since it uses as much as digits as its factorization.

1112212110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22698206343 (or 22698206336 counting only the distinct ones).

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

Adding to 1112212110121 its reverse (1210112122111), we get a palindrome (2322324232232).

The spelling of 1112212110121 in words is "one trillion, one hundred twelve billion, two hundred twelve million, one hundred ten thousand, one hundred twenty-one".