12211102213 has 4 divisors (see below), whose sum is σ = 12605008768. Its totient is φ = 11817195660.

The previous prime is 12211102199. The next prime is 12211102217. The reversal of 12211102213 is 31220111221.

12211102213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-12211102213 is a prime.

It is a super-2 number, since 2×12211102213² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211102217) 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 3 ways as a sum of consecutive naturals, for example, 196953231 + ... + 196953292.

It is an arithmetic number, because the mean of its divisors is an integer number (3151252192).

Almost surely, 2^12211102213 is an apocalyptic number.

It is an amenable number.

12211102213 is a deficient number, since it is larger than the sum of its proper divisors (393906555).

12211102213 is an equidigital number, since it uses as much as digits as its factorization.

12211102213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393906554.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12211102213 its reverse (31220111221), we get a palindrome (43431213434).

The spelling of 12211102213 in words is "twelve billion, two hundred eleven million, one hundred two thousand, two hundred thirteen".