12026689621601 has 2 divisors, whose sum is σ = 12026689621602. Its totient is φ = 12026689621600.

The previous prime is 12026689621571. The next prime is 12026689621619. The reversal of 12026689621601 is 10612698662021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11919514576225 + 107175045376 = 3452465^2 + 327376^2 .

It is an emirp because it is prime and its reverse (10612698662021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12026689621601 - 2³⁴ = 12009509752417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12026689621601.

It is not a weakly prime, because it can be changed into another prime (12026689621901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6013344810800 + 6013344810801.

It is an arithmetic number, because the mean of its divisors is an integer number (6013344810801).

Almost surely, 2^{12026689621601} is an apocalyptic number.

It is an amenable number.

12026689621601 is a deficient number, since it is larger than the sum of its proper divisors (1).

12026689621601 is an equidigital number, since it uses as much as digits as its factorization.

12026689621601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 12026689621601 in words is "twelve trillion, twenty-six billion, six hundred eighty-nine million, six hundred twenty-one thousand, six hundred one".