13220044133 has 4 divisors (see below), whose sum is σ = 13337035788. Its totient is φ = 13103052480.

The previous prime is 13220044127. The next prime is 13220044151. The reversal of 13220044133 is 33144002231.

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 4435293604 + 8784750529 = 66598^2 + 93727^2 .

It is a cyclic number.

It is not a de Polignac number, because 13220044133 - 2³⁰ = 12146302309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13220044099 and 13220044108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220014133) 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, 58495658 + ... + 58495883.

It is an arithmetic number, because the mean of its divisors is an integer number (3334258947).

Almost surely, 2^13220044133 is an apocalyptic number.

It is an amenable number.

13220044133 is a deficient number, since it is larger than the sum of its proper divisors (116991655).

13220044133 is a wasteful number, since it uses less digits than its factorization.

13220044133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116991654.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13220044133 its reverse (33144002231), we get a palindrome (46364046364).

The spelling of 13220044133 in words is "thirteen billion, two hundred twenty million, forty-four thousand, one hundred thirty-three".