13044221233 has 4 divisors (see below), whose sum is σ = 13044794148. Its totient is φ = 13043648320.

The previous prime is 13044221209. The next prime is 13044221243. The reversal of 13044221233 is 33212244031.

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 4383499264 + 8660721969 = 66208^2 + 93063^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13044221233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13044221198 and 13044221207.

It is not an unprimeable number, because it can be changed into a prime (13044221243) 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, 250828 + ... + 298333.

It is an arithmetic number, because the mean of its divisors is an integer number (3261198537).

Almost surely, 2^13044221233 is an apocalyptic number.

It is an amenable number.

13044221233 is a deficient number, since it is larger than the sum of its proper divisors (572915).

13044221233 is an equidigital number, since it uses as much as digits as its factorization.

13044221233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572914.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 13044221233 its reverse (33212244031), we get a palindrome (46256465264).

The spelling of 13044221233 in words is "thirteen billion, forty-four million, two hundred twenty-one thousand, two hundred thirty-three".