12102112021211 has 2 divisors, whose sum is σ = 12102112021212. Its totient is φ = 12102112021210.

The previous prime is 12102112021189. The next prime is 12102112021243. The reversal of 12102112021211 is 11212021120121.

12102112021211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (11212021120121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12102112021211 is a prime.

It is a super-2 number, since 2×12102112021211² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12102112021211.

It is not a weakly prime, because it can be changed into another prime (12102112021711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051056010605 + 6051056010606.

It is an arithmetic number, because the mean of its divisors is an integer number (6051056010606).

Almost surely, 2^{12102112021211} is an apocalyptic number.

12102112021211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102112021211 is an equidigital number, since it uses as much as digits as its factorization.

12102112021211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12102112021211 its reverse (11212021120121), we get a palindrome (23314133141332).

The spelling of 12102112021211 in words is "twelve trillion, one hundred two billion, one hundred twelve million, twenty-one thousand, two hundred eleven".