12001002111211 has 2 divisors, whose sum is σ = 12001002111212. Its totient is φ = 12001002111210.

The previous prime is 12001002111167. The next prime is 12001002111251. The reversal of 12001002111211 is 11211120010021.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (11211120010021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12001002111211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12001002111191 and 12001002111200.

It is not a weakly prime, because it can be changed into another prime (12001002111251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000501055605 + 6000501055606.

It is an arithmetic number, because the mean of its divisors is an integer number (6000501055606).

Almost surely, 2^{12001002111211} is an apocalyptic number.

12001002111211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001002111211 is an equidigital number, since it uses as much as digits as its factorization.

12001002111211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12001002111211 its reverse (11211120010021), we get a palindrome (23212122121232).

It can be divided in two parts, 120010021 and 11211, that multiplied together give a palindrome (1345432345431).

The spelling of 12001002111211 in words is "twelve trillion, one billion, two million, one hundred eleven thousand, two hundred eleven".