12012001001121 has 16 divisors (see below), whose sum is σ = 17472059377920. Its totient is φ = 7279976472720.

The previous prime is 12012001001089. The next prime is 12012001001173. The reversal of 12012001001121 is 12110010021021.

It is not a de Polignac number, because 12012001001121 - 2⁵ = 12012001001089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12012001001097 and 12012001001106.

It is not an unprimeable number, because it can be changed into a prime (12012001000121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19418226 + ... + 20027268.

It is an arithmetic number, because the mean of its divisors is an integer number (1092003711120).

Almost surely, 2^{12012001001121} is an apocalyptic number.

12012001001121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12012001001121 is a deficient number, since it is larger than the sum of its proper divisors (5460058376799).

12012001001121 is a wasteful number, since it uses less digits than its factorization.

12012001001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206716.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12012001001121 its reverse (12110010021021), we get a palindrome (24122011022142).

The spelling of 12012001001121 in words is "twelve trillion, twelve billion, one million, one thousand, one hundred twenty-one".