222444230321 has 4 divisors (see below), whose sum is σ = 222468659700. Its totient is φ = 222419800944.

The previous prime is 222444230303. The next prime is 222444230377. The reversal of 222444230321 is 123032444222.

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 87340936225 + 135103294096 = 295535^2 + 367564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222444230321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222444250321) 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, 12201026 + ... + 12219243.

It is an arithmetic number, because the mean of its divisors is an integer number (55617164925).

Almost surely, 2^222444230321 is an apocalyptic number.

It is an amenable number.

222444230321 is a deficient number, since it is larger than the sum of its proper divisors (24429379).

222444230321 is an equidigital number, since it uses as much as digits as its factorization.

222444230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24429378.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 222444230321 its reverse (123032444222), we get a palindrome (345476674543).

The spelling of 222444230321 in words is "two hundred twenty-two billion, four hundred forty-four million, two hundred thirty thousand, three hundred twenty-one".