11212211313 has 24 divisors (see below), whose sum is σ = 16247025600. Its totient is φ = 7451033184.

The previous prime is 11212211303. The next prime is 11212211341. The reversal of 11212211313 is 31311221211.

It is not a de Polignac number, because 11212211313 - 2¹⁷ = 11212080241 is a prime.

It is a super-3 number, since 3×11212211313³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11212211303) 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, 4940343 + ... + 4942611.

It is an arithmetic number, because the mean of its divisors is an integer number (676959400).

Almost surely, 2^11212211313 is an apocalyptic number.

It is an amenable number.

11212211313 is a deficient number, since it is larger than the sum of its proper divisors (5034814287).

11212211313 is a wasteful number, since it uses less digits than its factorization.

11212211313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3781 (or 3778 counting only the distinct ones).

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

Adding to 11212211313 its reverse (31311221211), we get a palindrome (42523432524).

The spelling of 11212211313 in words is "eleven billion, two hundred twelve million, two hundred eleven thousand, three hundred thirteen".