12021201110001 has 16 divisors (see below), whose sum is σ = 16373600169984. Its totient is φ = 7841557750224.

The previous prime is 12021201109987. The next prime is 12021201110033. The reversal of 12021201110001 is 10001110212021.

It is not a de Polignac number, because 12021201110001 - 2²⁶ = 12021134001137 is a prime.

It is a super-2 number, since 2×12021201110001² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12021201210001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10672921 + ... + 11745366.

It is an arithmetic number, because the mean of its divisors is an integer number (1023350010624).

Almost surely, 2^{12021201110001} is an apocalyptic number.

It is an amenable number.

12021201110001 is a deficient number, since it is larger than the sum of its proper divisors (4352399059983).

12021201110001 is a wasteful number, since it uses less digits than its factorization.

12021201110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22422140.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12021201110001 its reverse (10001110212021), we get a palindrome (22022311322022).

The spelling of 12021201110001 in words is "twelve trillion, twenty-one billion, two hundred one million, one hundred ten thousand, one".