221323210003 has 16 divisors (see below), whose sum is σ = 264698933760. Its totient is φ = 180934560576.

The previous prime is 221323209953. The next prime is 221323210021. The reversal of 221323210003 is 300012323122.

221323210003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221323210003 - 2²¹ = 221321112851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221323213003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1924938 + ... + 2036671.

It is an arithmetic number, because the mean of its divisors is an integer number (16543683360).

Almost surely, 2^221323210003 is an apocalyptic number.

221323210003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

221323210003 is a deficient number, since it is larger than the sum of its proper divisors (43375723757).

221323210003 is a wasteful number, since it uses less digits than its factorization.

221323210003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3961986.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 221323210003 its reverse (300012323122), we get a palindrome (521335533125).

The spelling of 221323210003 in words is "two hundred twenty-one billion, three hundred twenty-three million, two hundred ten thousand, three".