12001020012101 has 16 divisors (see below), whose sum is σ = 13282027726464. Its totient is φ = 10785581689344.

The previous prime is 12001020012043. The next prime is 12001020012119. The reversal of 12001020012101 is 10121002010021.

It is a cyclic number.

It is not a de Polignac number, because 12001020012101 - 2²⁶ = 12000952903237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001020012301) 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, 25914560 + ... + 26373593.

It is an arithmetic number, because the mean of its divisors is an integer number (830126732904).

Almost surely, 2^{12001020012101} is an apocalyptic number.

It is an amenable number.

12001020012101 is a deficient number, since it is larger than the sum of its proper divisors (1281007714363).

12001020012101 is a wasteful number, since it uses less digits than its factorization.

12001020012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52288780.

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

Adding to 12001020012101 its reverse (10121002010021), we get a palindrome (22122022022122).

The spelling of 12001020012101 in words is "twelve trillion, one billion, twenty million, twelve thousand, one hundred one".