12012012201021 has 32 divisors (see below), whose sum is σ = 18339202252800. Its totient is φ = 6850817213760.

The previous prime is 12012012200999. The next prime is 12012012201041. The reversal of 12012012201021 is 12010221021021.

It is a de Polignac number, because none of the positive numbers 2^k-12012012201021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012012201041) 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, 72810895 + ... + 72975683.

It is an arithmetic number, because the mean of its divisors is an integer number (573100070400).

Almost surely, 2^{12012012201021} is an apocalyptic number.

It is an amenable number.

12012012201021 is a deficient number, since it is larger than the sum of its proper divisors (6327190051779).

12012012201021 is a wasteful number, since it uses less digits than its factorization.

12012012201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171449.

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

Adding to 12012012201021 its reverse (12010221021021), we get a palindrome (24022233222042).

The spelling of 12012012201021 in words is "twelve trillion, twelve billion, twelve million, two hundred one thousand, twenty-one".