12001102133561 has 2 divisors, whose sum is σ = 12001102133562. Its totient is φ = 12001102133560.

The previous prime is 12001102133521. The next prime is 12001102133591. The reversal of 12001102133561 is 16533120110021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10209303040000 + 1791799093561 = 3195200^2 + 1338581^2 .

It is an emirp because it is prime and its reverse (16533120110021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12001102133561 - 2¹⁴ = 12001102117177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12001102133561.

It is not a weakly prime, because it can be changed into another prime (12001102133521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000551066780 + 6000551066781.

It is an arithmetic number, because the mean of its divisors is an integer number (6000551066781).

Almost surely, 2^{12001102133561} is an apocalyptic number.

It is an amenable number.

12001102133561 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001102133561 is an equidigital number, since it uses as much as digits as its factorization.

12001102133561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

Adding to 12001102133561 its reverse (16533120110021), we get a palindrome (28534222243582).

The spelling of 12001102133561 in words is "twelve trillion, one billion, one hundred two million, one hundred thirty-three thousand, five hundred sixty-one".