13021201 has 4 divisors (see below), whose sum is σ = 13787172. Its totient is φ = 12255232.

The previous prime is 13021189. The next prime is 13021207. The reversal of 13021201 is 10212031.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6130576 + 6890625 = 2476^2 + 2625^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13021201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13021207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382960 + ... + 382993.

It is an arithmetic number, because the mean of its divisors is an integer number (3446793).

Almost surely, 2^13021201 is an apocalyptic number.

It is an amenable number.

13021201 is a deficient number, since it is larger than the sum of its proper divisors (765971).

13021201 is an equidigital number, since it uses as much as digits as its factorization.

13021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765970.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 13021201 is about 3608.4901274633. The cubic root of 13021201 is about 235.2612215199.

Adding to 13021201 its reverse (10212031), we get a palindrome (23233232).

The spelling of 13021201 in words is "thirteen million, twenty-one thousand, two hundred one".