221222324003 has 4 divisors (see below), whose sum is σ = 221247641328. Its totient is φ = 221197006680.

The previous prime is 221222323991. The next prime is 221222324077. The reversal of 221222324003 is 300423222122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221222324003 - 2¹² = 221222319907 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 221222324003.

It is not an unprimeable number, because it can be changed into a prime (221222320003) 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, 12645551 + ... + 12663032.

It is an arithmetic number, because the mean of its divisors is an integer number (55311910332).

Almost surely, 2^221222324003 is an apocalyptic number.

221222324003 is a deficient number, since it is larger than the sum of its proper divisors (25317325).

221222324003 is an equidigital number, since it uses as much as digits as its factorization.

221222324003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25317324.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 221222324003 its reverse (300423222122), we get a palindrome (521645546125).

The spelling of 221222324003 in words is "two hundred twenty-one billion, two hundred twenty-two million, three hundred twenty-four thousand, three".