12000000122001 has 16 divisors (see below), whose sum is σ = 17777990588800. Its totient is φ = 7999904397744.

The previous prime is 12000000121981. The next prime is 12000000122039. The reversal of 12000000122001 is 10022100000021.

It is not a de Polignac number, because 12000000122001 - 2⁵ = 12000000121969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12000000122701) 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, 321286 + ... + 4909503.

It is an arithmetic number, because the mean of its divisors is an integer number (1111124411800).

Almost surely, 2^{12000000122001} is an apocalyptic number.

It is an amenable number.

12000000122001 is a deficient number, since it is larger than the sum of its proper divisors (5777990466799).

12000000122001 is an equidigital number, since it uses as much as digits as its factorization.

12000000122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5315765 (or 5315759 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12000000122001 its reverse (10022100000021), we get a palindrome (22022100122022).

The spelling of 12000000122001 in words is "twelve trillion, one hundred twenty-two thousand, one".