12001212101113 has 2 divisors, whose sum is σ = 12001212101114. Its totient is φ = 12001212101112.

The previous prime is 12001212101101. The next prime is 12001212101141. The reversal of 12001212101113 is 31110121210021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10471644224064 + 1529567877049 = 3235992^2 + 1236757^2 .

It is a cyclic number.

It is not a de Polignac number, because 12001212101113 - 2⁹ = 12001212100601 is a prime.

It is a super-2 number, since 2×12001212101113² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12001212101143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000606050556 + 6000606050557.

It is an arithmetic number, because the mean of its divisors is an integer number (6000606050557).

Almost surely, 2^{12001212101113} is an apocalyptic number.

It is an amenable number.

12001212101113 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001212101113 is an equidigital number, since it uses as much as digits as its factorization.

12001212101113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 12001212101113 its reverse (31110121210021), we get a palindrome (43111333311134).

The spelling of 12001212101113 in words is "twelve trillion, one billion, two hundred twelve million, one hundred one thousand, one hundred thirteen".