221314304343 has 16 divisors (see below), whose sum is σ = 322091740800. Its totient is φ = 134054870880.

The previous prime is 221314304329. The next prime is 221314304413. The reversal of 221314304343 is 343403413122.

It is a happy number.

It is not a de Polignac number, because 221314304343 - 2⁸ = 221314304087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221314304343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221314304843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1815333 + ... + 1933406.

It is an arithmetic number, because the mean of its divisors is an integer number (20130733800).

Almost surely, 2^221314304343 is an apocalyptic number.

221314304343 is a deficient number, since it is larger than the sum of its proper divisors (100777436457).

221314304343 is a wasteful number, since it uses less digits than its factorization.

221314304343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750542.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 221314304343 its reverse (343403413122), we get a palindrome (564717717465).

The spelling of 221314304343 in words is "two hundred twenty-one billion, three hundred fourteen million, three hundred four thousand, three hundred forty-three".