12001222011201 has 64 divisors (see below), whose sum is σ = 17394622857216. Its totient is φ = 7330614681600.

The previous prime is 12001222011199. The next prime is 12001222011223. The reversal of 12001222011201 is 10211022210021.

It is not a de Polignac number, because 12001222011201 - 2¹ = 12001222011199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12001222011271) 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 in 63 ways as a sum of consecutive naturals, for example, 1027408081 + ... + 1027419761.

It is an arithmetic number, because the mean of its divisors is an integer number (271790982144).

Almost surely, 2^{12001222011201} is an apocalyptic number.

It is an amenable number.

12001222011201 is a deficient number, since it is larger than the sum of its proper divisors (5393400846015).

12001222011201 is a wasteful number, since it uses less digits than its factorization.

12001222011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13262.

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

Adding to 12001222011201 its reverse (10211022210021), we get a palindrome (22212244221222).

The spelling of 12001222011201 in words is "twelve trillion, one billion, two hundred twenty-two million, eleven thousand, two hundred one".