11313212211 has 12 divisors (see below), whose sum is σ = 18675778992. Its totient is φ = 6464692656.

The previous prime is 11313212201. The next prime is 11313212233. The reversal of 11313212211 is 11221231311.

11313212211 is a `hidden beast` number, since 1 + 131 + 321 + 2 + 211 = 666.

11313212211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11313212211 - 2²⁷ = 11178994483 is a prime.

It is a super-2 number, since 2×11313212211² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11313212201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89787336 + ... + 89787461.

It is an arithmetic number, because the mean of its divisors is an integer number (1556314916).

Almost surely, 2^11313212211 is an apocalyptic number.

11313212211 is a deficient number, since it is larger than the sum of its proper divisors (7362566781).

11313212211 is a wasteful number, since it uses less digits than its factorization.

11313212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179574810 (or 179574807 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

Adding to 11313212211 its reverse (11221231311), we get a palindrome (22534443522).

The spelling of 11313212211 in words is "eleven billion, three hundred thirteen million, two hundred twelve thousand, two hundred eleven".