12102110011121 has 6 divisors (see below), whose sum is σ = 13104651669030. Its totient is φ = 11171178471648.

The previous prime is 12102110011073. The next prime is 12102110011163. The reversal of 12102110011121 is 12111001120121.

It can be written as a sum of positive squares in 3 ways, for example, as 1415062510096 + 10687047501025 = 1189564^2 + 3269105^2 .

It is not a de Polignac number, because 12102110011121 - 2³⁴ = 12084930141937 is a prime.

It is a super-2 number, since 2×12102110011121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12102110011096 and 12102110011105.

It is not an unprimeable number, because it can be changed into a prime (12102110011721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35805059036 + ... + 35805059373.

It is an arithmetic number, because the mean of its divisors is an integer number (2184108611505).

Almost surely, 2^{12102110011121} is an apocalyptic number.

It is an amenable number.

12102110011121 is a deficient number, since it is larger than the sum of its proper divisors (1002541657909).

12102110011121 is an equidigital number, since it uses as much as digits as its factorization.

12102110011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71610118435 (or 71610118422 counting only the distinct ones).

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

Adding to 12102110011121 its reverse (12111001120121), we get a palindrome (24213111131242).

The spelling of 12102110011121 in words is "twelve trillion, one hundred two billion, one hundred ten million, eleven thousand, one hundred twenty-one".