12001111201201 has 4 divisors (see below), whose sum is σ = 12020499103600. Its totient is φ = 11981723298804.

The previous prime is 12001111201187. The next prime is 12001111201249. The reversal of 12001111201201 is 10210211110021.

It is a happy number.

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 12001111201201 - 2⁵ = 12001111201169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001111201271) 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, 9693950271 + ... + 9693951508.

It is an arithmetic number, because the mean of its divisors is an integer number (3005124775900).

Almost surely, 2^{12001111201201} is an apocalyptic number.

It is an amenable number.

12001111201201 is a deficient number, since it is larger than the sum of its proper divisors (19387902399).

12001111201201 is an equidigital number, since it uses as much as digits as its factorization.

12001111201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19387902398.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12001111201201 its reverse (10210211110021), we get a palindrome (22211322311222).

The spelling of 12001111201201 in words is "twelve trillion, one billion, one hundred eleven million, two hundred one thousand, two hundred one".