12211112012211 has 24 divisors (see below), whose sum is σ = 20158302478080. Its totient is φ = 6977682650736.

The previous prime is 12211112012201. The next prime is 12211112012221. The reversal of 12211112012211 is 11221021111221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12211112012201) and next prime (12211112012221).

It is not a de Polignac number, because 12211112012211 - 2¹⁹ = 12211111487923 is a prime.

It is a super-2 number, since 2×12211112012211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12211112012201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3439156 + ... + 6020798.

It is an arithmetic number, because the mean of its divisors is an integer number (839929269920).

Almost surely, 2^{12211112012211} is an apocalyptic number.

12211112012211 is a deficient number, since it is larger than the sum of its proper divisors (7947190465869).

12211112012211 is a wasteful number, since it uses less digits than its factorization.

12211112012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656735 (or 2656732 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 12211112012211 its reverse (11221021111221), we get a palindrome (23432133123432).

The spelling of 12211112012211 in words is "twelve trillion, two hundred eleven billion, one hundred twelve million, twelve thousand, two hundred eleven".