13212422 has 8 divisors (see below), whose sum is σ = 19878456. Its totient is φ = 6586272.

The previous prime is 13212413. The next prime is 13212427. The reversal of 13212422 is 22421231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13212422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9128 + ... + 10475.

It is an arithmetic number, because the mean of its divisors is an integer number (2484807).

Almost surely, 2^13212422 is an apocalyptic number.

13212422 is a deficient number, since it is larger than the sum of its proper divisors (6666034).

13212422 is a wasteful number, since it uses less digits than its factorization.

13212422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19942.

The product of its digits is 192, while the sum is 17.

The square root of 13212422 is about 3634.8895444016. The cubic root of 13212422 is about 236.4072614564.

Adding to 13212422 its reverse (22421231), we get a palindrome (35633653).

The spelling of 13212422 in words is "thirteen million, two hundred twelve thousand, four hundred twenty-two".