13222688004 has 72 divisors (see below), whose sum is σ = 34108139520. Its totient is φ = 4317867072.

The previous prime is 13222687979. The next prime is 13222688021. The reversal of 13222688004 is 40088622231.

It is a super-2 number, since 2×13222688004² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13222688004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 611709 + ... + 632955.

It is an arithmetic number, because the mean of its divisors is an integer number (473724160).

Almost surely, 2^13222688004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13222688004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17054069760).

13222688004 is an abundant number, since it is smaller than the sum of its proper divisors (20885451516).

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

13222688004 is a wasteful number, since it uses less digits than its factorization.

13222688004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21609 (or 21604 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 13222688004 in words is "thirteen billion, two hundred twenty-two million, six hundred eighty-eight thousand, four".