12010020121211 has 16 divisors (see below), whose sum is σ = 14448242822400. Its totient is φ = 9752431179168.

The previous prime is 12010020121193. The next prime is 12010020121213. The reversal of 12010020121211 is 11212102001021.

It is a cyclic number.

It is not a de Polignac number, because 12010020121211 - 2³⁴ = 11992840252027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12010020121213) 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, 32167841 + ... + 32539053.

It is an arithmetic number, because the mean of its divisors is an integer number (903015176400).

Almost surely, 2^{12010020121211} is an apocalyptic number.

12010020121211 is a deficient number, since it is larger than the sum of its proper divisors (2438222701189).

12010020121211 is a wasteful number, since it uses less digits than its factorization.

12010020121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614498.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12010020121211 its reverse (11212102001021), we get a palindrome (23222122122232).

The spelling of 12010020121211 in words is "twelve trillion, ten billion, twenty million, one hundred twenty-one thousand, two hundred eleven".