13222089 has 16 divisors (see below), whose sum is σ = 20221440. Its totient is φ = 8529840.

The previous prime is 13222067. The next prime is 13222091. The reversal of 13222089 is 98022231.

It is a happy number.

It is not a de Polignac number, because 13222089 - 2⁹ = 13221577 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13222189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7062 + ... + 8735.

It is an arithmetic number, because the mean of its divisors is an integer number (1263840).

Almost surely, 2^13222089 is an apocalyptic number.

It is an amenable number.

13222089 is a deficient number, since it is larger than the sum of its proper divisors (6999351).

13222089 is a wasteful number, since it uses less digits than its factorization.

13222089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15837 (or 15831 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 13222089 is about 3636.2190528075. The cubic root of 13222089 is about 236.4649039754.

The spelling of 13222089 in words is "thirteen million, two hundred twenty-two thousand, eighty-nine".