221233310343 has 8 divisors (see below), whose sum is σ = 327753052400. Its totient is φ = 147488873544.

The previous prime is 221233310327. The next prime is 221233310371. The reversal of 221233310343 is 343013332122.

221233310343 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 3 + 3 + 310 + 343 = 666.

It is not a de Polignac number, because 221233310343 - 2⁴ = 221233310327 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 8193826309 = 221233310343 / (2 + 2 + 1 + 2 + 3 + 3 + 3 + 1 + 0 + 3 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221233310443) 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, 4096913128 + ... + 4096913181.

It is an arithmetic number, because the mean of its divisors is an integer number (40969131550).

Almost surely, 2^221233310343 is an apocalyptic number.

221233310343 is a deficient number, since it is larger than the sum of its proper divisors (106519742057).

221233310343 is an equidigital number, since it uses as much as digits as its factorization.

221233310343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8193826318 (or 8193826312 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 221233310343 its reverse (343013332122), we get a palindrome (564246642465).

The spelling of 221233310343 in words is "two hundred twenty-one billion, two hundred thirty-three million, three hundred ten thousand, three hundred forty-three".