12121025021201 has 2 divisors, whose sum is σ = 12121025021202. Its totient is φ = 12121025021200.

The previous prime is 12121025021179. The next prime is 12121025021243. The reversal of 12121025021201 is 10212052012121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10404076036225 + 1716948984976 = 3225535^2 + 1310324^2 .

It is a cyclic number.

It is not a de Polignac number, because 12121025021201 - 2³⁸ = 11846147114257 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 (12121025021291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060512510600 + 6060512510601.

It is an arithmetic number, because the mean of its divisors is an integer number (6060512510601).

Almost surely, 2^{12121025021201} is an apocalyptic number.

It is an amenable number.

12121025021201 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121025021201 is an equidigital number, since it uses as much as digits as its factorization.

12121025021201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 12121025021201 its reverse (10212052012121), we get a palindrome (22333077033322).

The spelling of 12121025021201 in words is "twelve trillion, one hundred twenty-one billion, twenty-five million, twenty-one thousand, two hundred one".