213342333221 has 8 divisors (see below), whose sum is σ = 225898847424. Its totient is φ = 200786592960.

The previous prime is 213342333203. The next prime is 213342333227. The reversal of 213342333221 is 122333243312.

It is a happy number.

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 213342333221 - 2²² = 213338138917 is a prime.

It is a super-2 number, since 2×213342333221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213342333227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431816 + ... + 783038.

It is an arithmetic number, because the mean of its divisors is an integer number (28237355928).

Almost surely, 2^213342333221 is an apocalyptic number.

It is an amenable number.

213342333221 is a deficient number, since it is larger than the sum of its proper divisors (12556514203).

213342333221 is a wasteful number, since it uses less digits than its factorization.

213342333221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386971.

The product of its digits is 15552, while the sum is 29.

Adding to 213342333221 its reverse (122333243312), we get a palindrome (335675576533).

The spelling of 213342333221 in words is "two hundred thirteen billion, three hundred forty-two million, three hundred thirty-three thousand, two hundred twenty-one".