221414320243 has 4 divisors (see below), whose sum is σ = 234438692040. Its totient is φ = 208389948448.

The previous prime is 221414320241. The next prime is 221414320247. The reversal of 221414320243 is 342023414122.

221414320243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221414320243 - 2¹ = 221414320241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221414320241) 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 3 ways as a sum of consecutive naturals, for example, 6512185873 + ... + 6512185906.

It is an arithmetic number, because the mean of its divisors is an integer number (58609673010).

Almost surely, 2^221414320243 is an apocalyptic number.

221414320243 is a deficient number, since it is larger than the sum of its proper divisors (13024371797).

221414320243 is a wasteful number, since it uses less digits than its factorization.

221414320243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13024371796.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 221414320243 its reverse (342023414122), we get a palindrome (563437734365).

The spelling of 221414320243 in words is "two hundred twenty-one billion, four hundred fourteen million, three hundred twenty thousand, two hundred forty-three".