13131111423222 has 192 divisors, whose sum is σ = 32434119244800. Its totient is φ = 3806104101120.

The previous prime is 13131111423211. The next prime is 13131111423239. The reversal of 13131111423222 is 22232411113131.

13131111423222 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 1 + 1 + 11 + 423 + 222 = 666.

It is a super-2 number, since 2×13131111423222² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 837916447 + ... + 837932117.

It is an arithmetic number, because the mean of its divisors is an integer number (168927704400).

Almost surely, 2^{13131111423222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13131111423222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16217059622400).

13131111423222 is an abundant number, since it is smaller than the sum of its proper divisors (19303007821578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13131111423222 is a wasteful number, since it uses less digits than its factorization.

13131111423222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16763 (or 16760 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

Adding to 13131111423222 its reverse (22232411113131), we get a palindrome (35363522536353).

The spelling of 13131111423222 in words is "thirteen trillion, one hundred thirty-one billion, one hundred eleven million, four hundred twenty-three thousand, two hundred twenty-two".