11212222313 has 6 divisors (see below), whose sum is σ = 11910561726. Its totient is φ = 10552679552.

The previous prime is 11212222289. The next prime is 11212222331. The reversal of 11212222313 is 31322221211.

It can be written as a sum of positive squares in 3 ways, for example, as 6293724889 + 4918497424 = 79333^2 + 70132^2 .

It is not a de Polignac number, because 11212222313 - 2¹⁸ = 11211960169 is a prime.

It is a super-2 number, since 2×11212222313² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11212224313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19398020 + ... + 19398597.

It is an arithmetic number, because the mean of its divisors is an integer number (1985093621).

Almost surely, 2^11212222313 is an apocalyptic number.

It is an amenable number.

11212222313 is a deficient number, since it is larger than the sum of its proper divisors (698339413).

11212222313 is an equidigital number, since it uses as much as digits as its factorization.

11212222313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38796651 (or 38796634 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

Adding to 11212222313 its reverse (31322221211), we get a palindrome (42534443524).

The spelling of 11212222313 in words is "eleven billion, two hundred twelve million, two hundred twenty-two thousand, three hundred thirteen".