221003333221 has 8 divisors (see below), whose sum is σ = 242103312000. Its totient is φ = 200071482240.

The previous prime is 221003333171. The next prime is 221003333261. The reversal of 221003333221 is 122333300122.

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 221003333221 - 2¹⁷ = 221003202149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221003333192 and 221003333201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221003333261) 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, 42029196 + ... + 42034453.

It is an arithmetic number, because the mean of its divisors is an integer number (30262914000).

Almost surely, 2^221003333221 is an apocalyptic number.

It is an amenable number.

221003333221 is a deficient number, since it is larger than the sum of its proper divisors (21099978779).

221003333221 is a wasteful number, since it uses less digits than its factorization.

221003333221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84063899.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 221003333221 its reverse (122333300122), we get a palindrome (343336633343).

The spelling of 221003333221 in words is "two hundred twenty-one billion, three million, three hundred thirty-three thousand, two hundred twenty-one".