12012001021101 has 32 divisors (see below), whose sum is σ = 16437282615936. Its totient is φ = 7798094208000.

The previous prime is 12012001021093. The next prime is 12012001021169. The reversal of 12012001021101 is 10112010021021.

It is not a de Polignac number, because 12012001021101 - 2³ = 12012001021093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012001021901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 662868321 + ... + 662886441.

It is an arithmetic number, because the mean of its divisors is an integer number (513665081748).

Almost surely, 2^{12012001021101} is an apocalyptic number.

It is an amenable number.

12012001021101 is a deficient number, since it is larger than the sum of its proper divisors (4425281594835).

12012001021101 is a wasteful number, since it uses less digits than its factorization.

12012001021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27933.

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

Adding to 12012001021101 its reverse (10112010021021), we get a palindrome (22124011042122).

The spelling of 12012001021101 in words is "twelve trillion, twelve billion, one million, twenty-one thousand, one hundred one".