13222869 has 32 divisors (see below), whose sum is σ = 20442240. Its totient is φ = 7526400.

The previous prime is 13222849. The next prime is 13222871. The reversal of 13222869 is 96822231.

It is a happy number.

It is not a de Polignac number, because 13222869 - 2²⁰ = 12174293 is a prime.

It is a super-2 number, since 2×13222869² = 349688529182322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39069 + ... + 39405.

It is an arithmetic number, because the mean of its divisors is an integer number (638820).

Almost surely, 2^13222869 is an apocalyptic number.

It is an amenable number.

13222869 is a deficient number, since it is larger than the sum of its proper divisors (7219371).

13222869 is a wasteful number, since it uses less digits than its factorization.

13222869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421.

The product of its digits is 10368, while the sum is 33.

The square root of 13222869 is about 3636.3263054902. The cubic root of 13222869 is about 236.4695537449.

The spelling of 13222869 in words is "thirteen million, two hundred twenty-two thousand, eight hundred sixty-nine".