12001001201 has 16 divisors (see below), whose sum is σ = 14176662528. Its totient is φ = 9941529600.

The previous prime is 12001001149. The next prime is 12001001239. The reversal of 12001001201 is 10210010021.

It is a cyclic number.

It is not a de Polignac number, because 12001001201 - 2¹⁰ = 12001000177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12001601201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128801 + ... + 201473.

It is an arithmetic number, because the mean of its divisors is an integer number (886041408).

Almost surely, 2^12001001201 is an apocalyptic number.

It is an amenable number.

12001001201 is a deficient number, since it is larger than the sum of its proper divisors (2175661327).

12001001201 is an equidigital number, since it uses as much as digits as its factorization.

12001001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73472.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12001001201 its reverse (10210010021), we get a palindrome (22211011222).

The spelling of 12001001201 in words is "twelve billion, one million, one thousand, two hundred one".