13220044224 has 56 divisors (see below), whose sum is σ = 34988113920. Its totient is φ = 4405411584.

The previous prime is 13220044207. The next prime is 13220044261. The reversal of 13220044224 is 42244002231.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 13220044194 and 13220044203.

It is a congruent number.

It is an unprimeable number.

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, 853057 + ... + 868415.

Almost surely, 2^13220044224 is an apocalyptic number.

It is an amenable number.

13220044224 is an abundant number, since it is smaller than the sum of its proper divisors (21768069696).

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

13220044224 is a wasteful number, since it uses less digits than its factorization.

13220044224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19857 (or 19847 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 13220044224 its reverse (42244002231), we get a palindrome (55464046455).

The spelling of 13220044224 in words is "thirteen billion, two hundred twenty million, forty-four thousand, two hundred twenty-four".