12021322601 has 2 divisors, whose sum is σ = 12021322602. Its totient is φ = 12021322600.

The previous prime is 12021322597. The next prime is 12021322699. The reversal of 12021322601 is 10622312021.

12021322601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8180298025 + 3841024576 = 90445^2 + 61976^2 .

It is a cyclic number.

It is not a de Polignac number, because 12021322601 - 2² = 12021322597 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12021327601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010661300 + 6010661301.

It is an arithmetic number, because the mean of its divisors is an integer number (6010661301).

Almost surely, 2^12021322601 is an apocalyptic number.

It is an amenable number.

12021322601 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021322601 is an equidigital number, since it uses as much as digits as its factorization.

12021322601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12021322601 its reverse (10622312021), we get a palindrome (22643634622).

The spelling of 12021322601 in words is "twelve billion, twenty-one million, three hundred twenty-two thousand, six hundred one".