12000211001 has 2 divisors, whose sum is σ = 12000211002. Its totient is φ = 12000211000.

The previous prime is 12000210979. The next prime is 12000211043. The reversal of 12000211001 is 10011200021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6408162601 + 5592048400 = 80051^2 + 74780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12000211001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12000211001.

It is not a weakly prime, because it can be changed into another prime (12000217001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000105500 + 6000105501.

It is an arithmetic number, because the mean of its divisors is an integer number (6000105501).

Almost surely, 2^12000211001 is an apocalyptic number.

It is an amenable number.

12000211001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000211001 is an equidigital number, since it uses as much as digits as its factorization.

12000211001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12000211001 its reverse (10011200021), we get a palindrome (22011411022).

It can be divided in two parts, 1200021 and 1001, that multiplied together give a palindrome (1201221021).

The spelling of 12000211001 in words is "twelve billion, two hundred eleven thousand, one".