13220434224 has 80 divisors (see below), whose sum is σ = 39597465600. Its totient is φ = 4215207744.

The previous prime is 13220434223. The next prime is 13220434243. The reversal of 13220434224 is 42243402231.

13220434224 is a `hidden beast` number, since 1 + 3 + 2 + 2 + 0 + 434 + 224 = 666.

It is a super-2 number, since 2×13220434224² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13220434223) 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 15 ways as a sum of consecutive naturals, for example, 655344 + ... + 675215.

It is an arithmetic number, because the mean of its divisors is an integer number (494968320).

Almost surely, 2^13220434224 is an apocalyptic number.

It is an amenable number.

13220434224 is an abundant number, since it is smaller than the sum of its proper divisors (26377031376).

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

13220434224 is a wasteful number, since it uses less digits than its factorization.

13220434224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330599 (or 1330587 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 13220434224 its reverse (42243402231), we get a palindrome (55463836455).

The spelling of 13220434224 in words is "thirteen billion, two hundred twenty million, four hundred thirty-four thousand, two hundred twenty-four".