13220022320 has 40 divisors (see below), whose sum is σ = 30773342880. Its totient is φ = 5281679360.

The previous prime is 13220022313. The next prime is 13220022349. The reversal of 13220022320 is 2322002231.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31361 + ... + 165600.

It is an arithmetic number, because the mean of its divisors is an integer number (769333572).

Almost surely, 2^13220022320 is an apocalyptic number.

13220022320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13220022320 is an abundant number, since it is smaller than the sum of its proper divisors (17553320560).

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

13220022320 is a wasteful number, since it uses less digits than its factorization.

13220022320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197813 (or 197807 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 13220022320 its reverse (2322002231), we get a palindrome (15542024551).

The spelling of 13220022320 in words is "thirteen billion, two hundred twenty million, twenty-two thousand, three hundred twenty".