12223441213 has 4 divisors (see below), whose sum is σ = 12223662748. Its totient is φ = 12223219680.

The previous prime is 12223441183. The next prime is 12223441369. The reversal of 12223441213 is 31214432221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 455096889 + 11768344324 = 21333^2 + 108482^2 .

It is a cyclic number.

It is not a de Polignac number, because 12223441213 - 2⁹ = 12223440701 is a prime.

It is a super-2 number, since 2×12223441213² (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 (12223442213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45223 + ... + 162763.

It is an arithmetic number, because the mean of its divisors is an integer number (3055915687).

Almost surely, 2^12223441213 is an apocalyptic number.

It is an amenable number.

12223441213 is a deficient number, since it is larger than the sum of its proper divisors (221535).

12223441213 is a wasteful number, since it uses less digits than its factorization.

12223441213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221534.

The product of its digits is 2304, while the sum is 25.

Adding to 12223441213 its reverse (31214432221), we get a palindrome (43437873434).

The spelling of 12223441213 in words is "twelve billion, two hundred twenty-three million, four hundred forty-one thousand, two hundred thirteen".