12212112021211 has 2 divisors, whose sum is σ = 12212112021212. Its totient is φ = 12212112021210.

The previous prime is 12212112021199. The next prime is 12212112021247. The reversal of 12212112021211 is 11212021121221.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (11212021121221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12212112021211 - 2¹⁵ = 12212111988443 is a prime.

It is not a weakly prime, because it can be changed into another prime (12212112021281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106056010605 + 6106056010606.

It is an arithmetic number, because the mean of its divisors is an integer number (6106056010606).

Almost surely, 2^{12212112021211} is an apocalyptic number.

12212112021211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212112021211 is an equidigital number, since it uses as much as digits as its factorization.

12212112021211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12212112021211 its reverse (11212021121221), we get a palindrome (23424133142432).

The spelling of 12212112021211 in words is "twelve trillion, two hundred twelve billion, one hundred twelve million, twenty-one thousand, two hundred eleven".