12211201021211 has 2 divisors, whose sum is σ = 12211201021212. Its totient is φ = 12211201021210.

The previous prime is 12211201021133. The next prime is 12211201021231. The reversal of 12211201021211 is 11212010211221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12211201021211 is a prime.

It is a super-2 number, since 2×12211201021211² (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 12211201021211.

It is not a weakly prime, because it can be changed into another prime (12211201021231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105600510605 + 6105600510606.

It is an arithmetic number, because the mean of its divisors is an integer number (6105600510606).

Almost surely, 2^{12211201021211} is an apocalyptic number.

12211201021211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211201021211 is an equidigital number, since it uses as much as digits as its factorization.

12211201021211 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 12211201021211 its reverse (11212010211221), we get a palindrome (23423211232432).

The spelling of 12211201021211 in words is "twelve trillion, two hundred eleven billion, two hundred one million, twenty-one thousand, two hundred eleven".