13221035 has 8 divisors (see below), whose sum is σ = 16377216. Its totient is φ = 10235520.

The previous prime is 13221031. The next prime is 13221037. The reversal of 13221035 is 53012231.

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

It is not a de Polignac number, because 13221035 - 2² = 13221031 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13221031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42494 + ... + 42803.

It is an arithmetic number, because the mean of its divisors is an integer number (2047152).

Almost surely, 2^13221035 is an apocalyptic number.

13221035 is a deficient number, since it is larger than the sum of its proper divisors (3156181).

13221035 is an equidigital number, since it uses as much as digits as its factorization.

13221035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85333.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 13221035 is about 3636.0741191565. The cubic root of 13221035 is about 236.4586205348.

Adding to 13221035 its reverse (53012231), we get a palindrome (66233266).

The spelling of 13221035 in words is "thirteen million, two hundred twenty-one thousand, thirty-five".