13044040221 has 8 divisors (see below), whose sum is σ = 17953087744. Its totient is φ = 8415509760.

The previous prime is 13044040187. The next prime is 13044040241. The reversal of 13044040221 is 12204044031.

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

It is not a de Polignac number, because 13044040221 - 2⁹ = 13044039709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13044040241) 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, 70129156 + ... + 70129341.

It is an arithmetic number, because the mean of its divisors is an integer number (2244135968).

Almost surely, 2^13044040221 is an apocalyptic number.

It is an amenable number.

13044040221 is a deficient number, since it is larger than the sum of its proper divisors (4909047523).

13044040221 is a wasteful number, since it uses less digits than its factorization.

13044040221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140258531.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 13044040221 its reverse (12204044031), we get a palindrome (25248084252).

The spelling of 13044040221 in words is "thirteen billion, forty-four million, forty thousand, two hundred twenty-one".