22231143433 has 4 divisors (see below), whose sum is σ = 22231873300. Its totient is φ = 22230413568.

The previous prime is 22231143343. The next prime is 22231143497. The reversal of 22231143433 is 33434113222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33434113222 = 2 ⋅16717056611.

It can be written as a sum of positive squares in 2 ways, for example, as 6312779209 + 15918364224 = 79453^2 + 126168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22231143433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22231183433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317160 + ... + 380857.

It is an arithmetic number, because the mean of its divisors is an integer number (5557968325).

Almost surely, 2^22231143433 is an apocalyptic number.

It is an amenable number.

22231143433 is a deficient number, since it is larger than the sum of its proper divisors (729867).

22231143433 is an equidigital number, since it uses as much as digits as its factorization.

22231143433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729866.

The product of its digits is 10368, while the sum is 28.

Adding to 22231143433 its reverse (33434113222), we get a palindrome (55665256655).

The spelling of 22231143433 in words is "twenty-two billion, two hundred thirty-one million, one hundred forty-three thousand, four hundred thirty-three".