22200230321 has 4 divisors (see below), whose sum is σ = 22213995252. Its totient is φ = 22186465392.

The previous prime is 22200230309. The next prime is 22200230329. The reversal of 22200230321 is 12303200222.

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 17400511921 + 4799718400 = 131911^2 + 69280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22200230321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22200230321.

It is not an unprimeable number, because it can be changed into a prime (22200230329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6880046 + ... + 6883271.

It is an arithmetic number, because the mean of its divisors is an integer number (5553498813).

Almost surely, 2^22200230321 is an apocalyptic number.

It is an amenable number.

22200230321 is a deficient number, since it is larger than the sum of its proper divisors (13764931).

22200230321 is a wasteful number, since it uses less digits than its factorization.

22200230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13764930.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 22200230321 its reverse (12303200222), we get a palindrome (34503430543).

The spelling of 22200230321 in words is "twenty-two billion, two hundred million, two hundred thirty thousand, three hundred twenty-one".