13212322 has 4 divisors (see below), whose sum is σ = 19818486. Its totient is φ = 6606160.

The previous prime is 13212307. The next prime is 13212337. The reversal of 13212322 is 22321231.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13212307) and next prime (13212337).

It can be written as a sum of positive squares in only one way, i.e., 7017201 + 6195121 = 2649^2 + 2489^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13212296 and 13212305.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3303079 + ... + 3303082.

Almost surely, 2^13212322 is an apocalyptic number.

13212322 is a deficient number, since it is larger than the sum of its proper divisors (6606164).

13212322 is an equidigital number, since it uses as much as digits as its factorization.

13212322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6606163.

The product of its digits is 144, while the sum is 16.

The square root of 13212322 is about 3634.8757887994. The cubic root of 13212322 is about 236.4066650282.

Adding to 13212322 its reverse (22321231), we get a palindrome (35533553).

The spelling of 13212322 in words is "thirteen million, two hundred twelve thousand, three hundred twenty-two".