221333222333 has 4 divisors (see below), whose sum is σ = 221348035260. Its totient is φ = 221318409408.

The previous prime is 221333222311. The next prime is 221333222419. The reversal of 221333222333 is 333222333122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19029374809 + 202303847524 = 137947^2 + 449782^2 .

It is a cyclic number.

It is not a de Polignac number, because 221333222333 - 2¹² = 221333218237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221333222296 and 221333222305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221333222303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7384028 + ... + 7413941.

It is an arithmetic number, because the mean of its divisors is an integer number (55337008815).

Almost surely, 2^221333222333 is an apocalyptic number.

It is an amenable number.

221333222333 is a deficient number, since it is larger than the sum of its proper divisors (14812927).

221333222333 is a wasteful number, since it uses less digits than its factorization.

221333222333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14812926.

The product of its digits is 23328, while the sum is 29.

Adding to 221333222333 its reverse (333222333122), we get a palindrome (554555555455).

The spelling of 221333222333 in words is "two hundred twenty-one billion, three hundred thirty-three million, two hundred twenty-two thousand, three hundred thirty-three".