11223216213 has 24 divisors (see below), whose sum is σ = 17415909504. Its totient is φ = 6401831040.

The previous prime is 11223216209. The next prime is 11223216239. The reversal of 11223216213 is 31261232211.

11223216213 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 11223216213 - 2² = 11223216209 is a prime.

It is a super-2 number, since 2×11223216213² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223216203) 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 23 ways as a sum of consecutive naturals, for example, 903181 + ... + 915522.

It is an arithmetic number, because the mean of its divisors is an integer number (725662896).

Almost surely, 2^11223216213 is an apocalyptic number.

It is an amenable number.

11223216213 is a deficient number, since it is larger than the sum of its proper divisors (6192693291).

11223216213 is a wasteful number, since it uses less digits than its factorization.

11223216213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818745 (or 1818734 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

Adding to 11223216213 its reverse (31261232211), we get a palindrome (42484448424).

The spelling of 11223216213 in words is "eleven billion, two hundred twenty-three million, two hundred sixteen thousand, two hundred thirteen".