12001212210201 has 4 divisors (see below), whose sum is σ = 16001616280272. Its totient is φ = 8000808140132.

The previous prime is 12001212210187. The next prime is 12001212210227. The reversal of 12001212210201 is 10201221210021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12001212210201 - 2⁹ = 12001212209689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12001212210101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2000202035031 + ... + 2000202035036.

It is an arithmetic number, because the mean of its divisors is an integer number (4000404070068).

Almost surely, 2^{12001212210201} is an apocalyptic number.

It is an amenable number.

12001212210201 is a deficient number, since it is larger than the sum of its proper divisors (4000404070071).

12001212210201 is an equidigital number, since it uses as much as digits as its factorization.

12001212210201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4000404070070.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12001212210201 its reverse (10201221210021), we get a palindrome (22202433420222).

The spelling of 12001212210201 in words is "twelve trillion, one billion, two hundred twelve million, two hundred ten thousand, two hundred one".