13222320040056 has 32 divisors (see below), whose sum is σ = 35000258930640. Its totient is φ = 4148178835968.

The previous prime is 13222320040051. The next prime is 13222320040099. The reversal of 13222320040056 is 65004002322231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222320040051) 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 7 ways as a sum of consecutive naturals, for example, 16203823171 + ... + 16203823986.

Almost surely, 2^{13222320040056} is an apocalyptic number.

It is an amenable number.

13222320040056 is an abundant number, since it is smaller than the sum of its proper divisors (21777938890584).

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

13222320040056 is a wasteful number, since it uses less digits than its factorization.

13222320040056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32407647183 (or 32407647179 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 13222320040056 its reverse (65004002322231), we get a palindrome (78226322362287).

The spelling of 13222320040056 in words is "thirteen trillion, two hundred twenty-two billion, three hundred twenty million, forty thousand, fifty-six".