13222235233 has 4 divisors (see below), whose sum is σ = 13579592980. Its totient is φ = 12864877488.

The previous prime is 13222235189. The next prime is 13222235267. The reversal of 13222235233 is 33253222231.

It is a happy number.

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 6446805264 + 6775429969 = 80292^2 + 82313^2 .

It is a cyclic number.

It is not a de Polignac number, because 13222235233 - 2²¹ = 13220138081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13222235933) 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, 178678818 + ... + 178678891.

It is an arithmetic number, because the mean of its divisors is an integer number (3394898245).

Almost surely, 2^13222235233 is an apocalyptic number.

It is an amenable number.

13222235233 is a deficient number, since it is larger than the sum of its proper divisors (357357747).

13222235233 is an equidigital number, since it uses as much as digits as its factorization.

13222235233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357357746.

The product of its digits is 12960, while the sum is 28.

Adding to 13222235233 its reverse (33253222231), we get a palindrome (46475457464).

The spelling of 13222235233 in words is "thirteen billion, two hundred twenty-two million, two hundred thirty-five thousand, two hundred thirty-three".