11212212110211 has 24 divisors (see below), whose sum is σ = 19194568882944. Its totient is φ = 6406978347720.

The previous prime is 11212212110167. The next prime is 11212212110227. The reversal of 11212212110211 is 11201121221211.

It is a happy number.

11212212110211 is a `hidden beast` number, since 1 + 1 + 21 + 221 + 211 + 0 + 211 = 666.

It is not a de Polignac number, because 11212212110211 - 2¹⁴ = 11212212093827 is a prime.

It is a super-2 number, since 2×11212212110211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11212212110261) 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, 3295769055 + ... + 3295772456.

It is an arithmetic number, because the mean of its divisors is an integer number (799773703456).

Almost surely, 2^{11212212110211} is an apocalyptic number.

11212212110211 is a deficient number, since it is larger than the sum of its proper divisors (7982356772733).

11212212110211 is an frugal number, since it uses more digits than its factorization.

11212212110211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6591541533 (or 6591541521 counting only the distinct ones).

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

Adding to 11212212110211 its reverse (11201121221211), we get a palindrome (22413333331422).

The spelling of 11212212110211 in words is "eleven trillion, two hundred twelve billion, two hundred twelve million, one hundred ten thousand, two hundred eleven".