12012000122001 has 24 divisors (see below), whose sum is σ = 17604588419712. Its totient is φ = 7279907192800.

The previous prime is 12012000121991. The next prime is 12012000122009. The reversal of 12012000122001 is 10022100021021.

It is not a de Polignac number, because 12012000122001 - 2⁷ = 12012000121873 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12012000122009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37591816 + ... + 37910006.

It is an arithmetic number, because the mean of its divisors is an integer number (733524517488).

Almost surely, 2^{12012000122001} is an apocalyptic number.

12012000122001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12012000122001 is a deficient number, since it is larger than the sum of its proper divisors (5592588297711).

12012000122001 is a wasteful number, since it uses less digits than its factorization.

12012000122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422213 (or 422202 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12012000122001 its reverse (10022100021021), we get a palindrome (22034100143022).

The spelling of 12012000122001 in words is "twelve trillion, twelve billion, one hundred twenty-two thousand, one".