13222021333 has 4 divisors (see below), whose sum is σ = 13269754540. Its totient is φ = 13174288128.

The previous prime is 13222021331. The next prime is 13222021343. The reversal of 13222021333 is 33312022231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33312022231 = 149 ⋅223570619.

It can be written as a sum of positive squares in 2 ways, for example, as 5608062769 + 7613958564 = 74887^2 + 87258^2 .

It is a cyclic number.

It is not a de Polignac number, because 13222021333 - 2¹ = 13222021331 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 (13222021331) 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, 23866188 + ... + 23866741.

It is an arithmetic number, because the mean of its divisors is an integer number (3317438635).

Almost surely, 2^13222021333 is an apocalyptic number.

It is an amenable number.

13222021333 is a deficient number, since it is larger than the sum of its proper divisors (47733207).

13222021333 is an equidigital number, since it uses as much as digits as its factorization.

13222021333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47733206.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 13222021333 its reverse (33312022231), we get a palindrome (46534043564).

The spelling of 13222021333 in words is "thirteen billion, two hundred twenty-two million, twenty-one thousand, three hundred thirty-three".