213233330221 has 8 divisors (see below), whose sum is σ = 215522686080. Its totient is φ = 210948188592.

The previous prime is 213233330203. The next prime is 213233330227. The reversal of 213233330221 is 122033332312.

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 213233330221 - 2⁹ = 213233329709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213233330227) 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, 951766 + ... + 1154263.

It is an arithmetic number, because the mean of its divisors is an integer number (26940335760).

Almost surely, 2^213233330221 is an apocalyptic number.

It is an amenable number.

213233330221 is a deficient number, since it is larger than the sum of its proper divisors (2289355859).

213233330221 is a wasteful number, since it uses less digits than its factorization.

213233330221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107115.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 213233330221 its reverse (122033332312), we get a palindrome (335266662533).

The spelling of 213233330221 in words is "two hundred thirteen billion, two hundred thirty-three million, three hundred thirty thousand, two hundred twenty-one".