12010321211121 has 16 divisors (see below), whose sum is σ = 17950529248320. Its totient is φ = 7936023453120.

The previous prime is 12010321211099. The next prime is 12010321211129. The reversal of 12010321211121 is 12111212301021.

It is a happy number.

12010321211121 is a `hidden beast` number, since 1 + 2 + 0 + 10 + 321 + 211 + 121 = 666.

It is not a de Polignac number, because 12010321211121 - 2²³ = 12010312822513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12010321211094 and 12010321211103.

It is not an unprimeable number, because it can be changed into a prime (12010321211129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1968256735 + ... + 1968262836.

It is an arithmetic number, because the mean of its divisors is an integer number (1121908078020).

Almost surely, 2^{12010321211121} is an apocalyptic number.

It is an amenable number.

12010321211121 is a deficient number, since it is larger than the sum of its proper divisors (5940208037199).

12010321211121 is a wasteful number, since it uses less digits than its factorization.

12010321211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3936519693 (or 3936519687 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 12010321211121 its reverse (12111212301021), we get a palindrome (24121533512142).

The spelling of 12010321211121 in words is "twelve trillion, ten billion, three hundred twenty-one million, two hundred eleven thousand, one hundred twenty-one".