13244231222 has 4 divisors (see below), whose sum is σ = 19866346836. Its totient is φ = 6622115610.

The previous prime is 13244231171. The next prime is 13244231249. The reversal of 13244231222 is 22213244231.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×13244231222² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13244231191 and 13244231200.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3311057804 + ... + 3311057807.

It is an arithmetic number, because the mean of its divisors is an integer number (4966586709).

Almost surely, 2^13244231222 is an apocalyptic number.

13244231222 is a deficient number, since it is larger than the sum of its proper divisors (6622115614).

13244231222 is an equidigital number, since it uses as much as digits as its factorization.

13244231222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6622115613.

The product of its digits is 4608, while the sum is 26.

Adding to 13244231222 its reverse (22213244231), we get a palindrome (35457475453).

The spelling of 13244231222 in words is "thirteen billion, two hundred forty-four million, two hundred thirty-one thousand, two hundred twenty-two".