13220131422 has 16 divisors (see below), whose sum is σ = 26475199632. Its totient is φ = 4400887680.

The previous prime is 13220131403. The next prime is 13220131423. The reversal of 13220131422 is 22413102231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220131423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1450779 + ... + 1459862.

It is an arithmetic number, because the mean of its divisors is an integer number (1654699977).

Almost surely, 2^13220131422 is an apocalyptic number.

13220131422 is an abundant number, since it is smaller than the sum of its proper divisors (13255068210).

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

13220131422 is a wasteful number, since it uses less digits than its factorization.

13220131422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911403.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13220131422 its reverse (22413102231), we get a palindrome (35633233653).

The spelling of 13220131422 in words is "thirteen billion, two hundred twenty million, one hundred thirty-one thousand, four hundred twenty-two".