221111303243 has 8 divisors (see below), whose sum is σ = 224928069456. Its totient is φ = 217300730400.

The previous prime is 221111303227. The next prime is 221111303249. The reversal of 221111303243 is 342303111122.

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 221111303243 - 2⁴ = 221111303227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221111303249) 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, 1476296 + ... + 1619157.

It is an arithmetic number, because the mean of its divisors is an integer number (28116008682).

Almost surely, 2^221111303243 is an apocalyptic number.

221111303243 is a deficient number, since it is larger than the sum of its proper divisors (3816766213).

221111303243 is a wasteful number, since it uses less digits than its factorization.

221111303243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3096685.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 221111303243 its reverse (342303111122), we get a palindrome (563414414365).

The spelling of 221111303243 in words is "two hundred twenty-one billion, one hundred eleven million, three hundred three thousand, two hundred forty-three".