13044204314221 has 4 divisors (see below), whose sum is σ = 13051447072444. Its totient is φ = 13036961556000.

The previous prime is 13044204314213. The next prime is 13044204314233. The reversal of 13044204314221 is 12241340244031.

It is a happy number.

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 2209343340996 + 10834860973225 = 1486386^2 + 3291635^2 .

It is a cyclic number.

It is not a de Polignac number, because 13044204314221 - 2³ = 13044204314213 is a prime.

It is a super-2 number, since 2×13044204314221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13044204314821) 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, 3621376410 + ... + 3621380011.

It is an arithmetic number, because the mean of its divisors is an integer number (3262861768111).

Almost surely, 2^{13044204314221} is an apocalyptic number.

It is an amenable number.

13044204314221 is a deficient number, since it is larger than the sum of its proper divisors (7242758223).

13044204314221 is an equidigital number, since it uses as much as digits as its factorization.

13044204314221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7242758222.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 13044204314221 its reverse (12241340244031), we get a palindrome (25285544558252).

The spelling of 13044204314221 in words is "thirteen trillion, forty-four billion, two hundred four million, three hundred fourteen thousand, two hundred twenty-one".