13331221033 has 16 divisors (see below), whose sum is σ = 14882212800. Its totient is φ = 11857043520.

The previous prime is 13331221003. The next prime is 13331221037. The reversal of 13331221033 is 33012213331.

It is a cyclic number.

It is not a de Polignac number, because 13331221033 - 2²¹ = 13329123881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13331220995 and 13331221013.

It is not an unprimeable number, because it can be changed into a prime (13331221037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149098 + ... + 221116.

It is an arithmetic number, because the mean of its divisors is an integer number (930138300).

Almost surely, 2^13331221033 is an apocalyptic number.

13331221033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13331221033 is a deficient number, since it is larger than the sum of its proper divisors (1550991767).

13331221033 is a wasteful number, since it uses less digits than its factorization.

13331221033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72552.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 13331221033 its reverse (33012213331), we get a palindrome (46343434364).

The spelling of 13331221033 in words is "thirteen billion, three hundred thirty-one million, two hundred twenty-one thousand, thirty-three".