221303420103 has 8 divisors (see below), whose sum is σ = 295371404928. Its totient is φ = 147385524344.

The previous prime is 221303420101. The next prime is 221303420119. The reversal of 221303420103 is 301024303122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221303420103 - 2¹ = 221303420101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221303420103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221303420101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37518825 + ... + 37524722.

It is an arithmetic number, because the mean of its divisors is an integer number (36921425616).

Almost surely, 2^221303420103 is an apocalyptic number.

221303420103 is a deficient number, since it is larger than the sum of its proper divisors (74067984825).

221303420103 is an equidigital number, since it uses as much as digits as its factorization.

221303420103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75044533.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 221303420103 its reverse (301024303122), we get a palindrome (522327723225).

The spelling of 221303420103 in words is "two hundred twenty-one billion, three hundred three million, four hundred twenty thousand, one hundred three".