213343304221 has 8 divisors (see below), whose sum is σ = 224884252800. Its totient is φ = 201833591040.

The previous prime is 213343304147. The next prime is 213343304257. The reversal of 213343304221 is 122403343312.

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 213343304221 - 2⁷ = 213343304093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213343304221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213343304521) 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, 7794820 + ... + 7822141.

It is an arithmetic number, because the mean of its divisors is an integer number (28110531600).

Almost surely, 2^213343304221 is an apocalyptic number.

It is an amenable number.

213343304221 is a deficient number, since it is larger than the sum of its proper divisors (11540948579).

213343304221 is a wasteful number, since it uses less digits than its factorization.

213343304221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15617699.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 213343304221 its reverse (122403343312), we get a palindrome (335746647533).

The spelling of 213343304221 in words is "two hundred thirteen billion, three hundred forty-three million, three hundred four thousand, two hundred twenty-one".