12001220113 has 2 divisors, whose sum is σ = 12001220114. Its totient is φ = 12001220112.

The previous prime is 12001220089. The next prime is 12001220177. The reversal of 12001220113 is 31102210021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11937092049 + 64128064 = 109257^2 + 8008^2 .

It is a cyclic number.

It is not a de Polignac number, because 12001220113 - 2²⁹ = 11464349201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12001220093 and 12001220102.

It is not a weakly prime, because it can be changed into another prime (12001220813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000610056 + 6000610057.

It is an arithmetic number, because the mean of its divisors is an integer number (6000610057).

Almost surely, 2^12001220113 is an apocalyptic number.

It is an amenable number.

12001220113 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001220113 is an equidigital number, since it uses as much as digits as its factorization.

12001220113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12001220113 its reverse (31102210021), we get a palindrome (43103430134).

The spelling of 12001220113 in words is "twelve billion, one million, two hundred twenty thousand, one hundred thirteen".