13231222422 has 64 divisors (see below), whose sum is σ = 30371701248. Its totient is φ = 3805920000.

The previous prime is 13231222409. The next prime is 13231222423. The reversal of 13231222422 is 22422213231.

It is a junction number, because it is equal to n+sod(n) for n = 13231222392 and 13231222401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231222423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34047 + ... + 166197.

It is an arithmetic number, because the mean of its divisors is an integer number (474557832).

Almost surely, 2^13231222422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13231222422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15185850624).

13231222422 is an abundant number, since it is smaller than the sum of its proper divisors (17140478826).

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

13231222422 is a wasteful number, since it uses less digits than its factorization.

13231222422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132245.

The product of its digits is 2304, while the sum is 24.

Adding to 13231222422 its reverse (22422213231), we get a palindrome (35653435653).

The spelling of 13231222422 in words is "thirteen billion, two hundred thirty-one million, two hundred twenty-two thousand, four hundred twenty-two".