12001122021211 has 2 divisors, whose sum is σ = 12001122021212. Its totient is φ = 12001122021210.

The previous prime is 12001122021143. The next prime is 12001122021221. The reversal of 12001122021211 is 11212022110021.

It is a strong prime.

It is an emirp because it is prime and its reverse (11212022110021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12001122021211 - 2¹¹ = 12001122019163 is a prime.

It is not a weakly prime, because it can be changed into another prime (12001122021221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000561010605 + 6000561010606.

It is an arithmetic number, because the mean of its divisors is an integer number (6000561010606).

Almost surely, 2^{12001122021211} is an apocalyptic number.

12001122021211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001122021211 is an equidigital number, since it uses as much as digits as its factorization.

12001122021211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12001122021211 its reverse (11212022110021), we get a palindrome (23213144131232).

The spelling of 12001122021211 in words is "twelve trillion, one billion, one hundred twenty-two million, twenty-one thousand, two hundred eleven".