13222560 has 144 divisors (see below), whose sum is σ = 45378144. Its totient is φ = 3234816.

The previous prime is 13222553. The next prime is 13222571. The reversal of 13222560 is 6522231.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81039 + ... + 81201.

It is an arithmetic number, because the mean of its divisors is an integer number (315126).

Almost surely, 2^13222560 is an apocalyptic number.

13222560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13222560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22689072).

13222560 is an abundant number, since it is smaller than the sum of its proper divisors (32155584).

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

13222560 is a wasteful number, since it uses less digits than its factorization.

13222560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 13222560 is about 3636.2838173058. The cubic root of 13222560 is about 236.4677117427.

Adding to 13222560 its reverse (6522231), we get a palindrome (19744791).

The spelling of 13222560 in words is "thirteen million, two hundred twenty-two thousand, five hundred sixty".