221222340203 has 4 divisors (see below), whose sum is σ = 221408712360. Its totient is φ = 221035968048.

The previous prime is 221222340187. The next prime is 221222340221. The reversal of 221222340203 is 302043222122.

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 221222340203 - 2⁴ = 221222340187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221222340293) 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, 93184298 + ... + 93186671.

It is an arithmetic number, because the mean of its divisors is an integer number (55352178090).

Almost surely, 2^221222340203 is an apocalyptic number.

221222340203 is a deficient number, since it is larger than the sum of its proper divisors (186372157).

221222340203 is a wasteful number, since it uses less digits than its factorization.

221222340203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186372156.

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

Adding to 221222340203 its reverse (302043222122), we get a palindrome (523265562325).

The spelling of 221222340203 in words is "two hundred twenty-one billion, two hundred twenty-two million, three hundred forty thousand, two hundred three".