12001201222101 has 32 divisors (see below), whose sum is σ = 20017135987968. Its totient is φ = 6226528458240.

The previous prime is 12001201222081. The next prime is 12001201222117. The reversal of 12001201222101 is 10122210210021.

It is not a de Polignac number, because 12001201222101 - 2²⁹ = 12000664351189 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001201122101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 360314856 + ... + 360348161.

It is an arithmetic number, because the mean of its divisors is an integer number (625535499624).

Almost surely, 2^{12001201222101} is an apocalyptic number.

It is an amenable number.

12001201222101 is a deficient number, since it is larger than the sum of its proper divisors (8015934765867).

12001201222101 is a wasteful number, since it uses less digits than its factorization.

12001201222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720663101.

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

Adding to 12001201222101 its reverse (10122210210021), we get a palindrome (22123411432122).

The spelling of 12001201222101 in words is "twelve trillion, one billion, two hundred one million, two hundred twenty-two thousand, one hundred one".