13222755 has 48 divisors (see below), whose sum is σ = 28217280. Its totient is φ = 5577984.

The previous prime is 13222751. The next prime is 13222757. The reversal of 13222755 is 55722231.

13222755 is nontrivially palindromic in base 4.

13222755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13222755 - 2² = 13222751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13222751) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2481 + ... + 5709.

It is an arithmetic number, because the mean of its divisors is an integer number (587860).

Almost surely, 2^13222755 is an apocalyptic number.

13222755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13222755 is an abundant number, since it is smaller than the sum of its proper divisors (14994525).

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

13222755 is a wasteful number, since it uses less digits than its factorization.

13222755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260 (or 3257 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 13222755 is about 3636.3106302955. The cubic root of 13222755 is about 236.4688741746.

Adding to 13222755 its reverse (55722231), we get a palindrome (68944986).

The spelling of 13222755 in words is "thirteen million, two hundred twenty-two thousand, seven hundred fifty-five".