12001020120101 has 16 divisors (see below), whose sum is σ = 12240716277888. Its totient is φ = 11764036032000.

The previous prime is 12001020120059. The next prime is 12001020120191. The reversal of 12001020120101 is 10102102010021.

It is a cyclic number.

It is not a de Polignac number, because 12001020120101 - 2³⁸ = 11726142213157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001020120191) 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, 6440936 + ... + 8092446.

It is an arithmetic number, because the mean of its divisors is an integer number (765044767368).

Almost surely, 2^{12001020120101} is an apocalyptic number.

It is an amenable number.

12001020120101 is a deficient number, since it is larger than the sum of its proper divisors (239696157787).

12001020120101 is a wasteful number, since it uses less digits than its factorization.

12001020120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652332.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12001020120101 its reverse (10102102010021), we get a palindrome (22103122130122).

The spelling of 12001020120101 in words is "twelve trillion, one billion, twenty million, one hundred twenty thousand, one hundred one".