12110110121021 has 16 divisors (see below), whose sum is σ = 13376952489600. Its totient is φ = 10871427194880.

The previous prime is 12110110121009. The next prime is 12110110121027. The reversal of 12110110121021 is 12012101101121.

It is a cyclic number.

It is not a de Polignac number, because 12110110121021 - 2³⁴ = 12092930251837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12110110120987 and 12110110121005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110110121027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12159761 + ... + 13117926.

It is an arithmetic number, because the mean of its divisors is an integer number (836059530600).

Almost surely, 2^{12110110121021} is an apocalyptic number.

12110110121021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12110110121021 is a deficient number, since it is larger than the sum of its proper divisors (1266842368579).

12110110121021 is a wasteful number, since it uses less digits than its factorization.

12110110121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25278244.

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

Adding to 12110110121021 its reverse (12012101101121), we get a palindrome (24122211222142).

The spelling of 12110110121021 in words is "twelve trillion, one hundred ten billion, one hundred ten million, one hundred twenty-one thousand, twenty-one".