213000320221 has 16 divisors (see below), whose sum is σ = 233325630720. Its totient is φ = 193239472320.

The previous prime is 213000320213. The next prime is 213000320243. The reversal of 213000320221 is 122023000312.

It is a cyclic number.

It is not a de Polignac number, because 213000320221 - 2³ = 213000320213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213000320195 and 213000320204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213000320321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3639531 + ... + 3697591.

It is an arithmetic number, because the mean of its divisors is an integer number (14582851920).

Almost surely, 2^213000320221 is an apocalyptic number.

It is an amenable number.

213000320221 is a deficient number, since it is larger than the sum of its proper divisors (20325310499).

213000320221 is a wasteful number, since it uses less digits than its factorization.

213000320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62916.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 213000320221 its reverse (122023000312), we get a palindrome (335023320533).

The spelling of 213000320221 in words is "two hundred thirteen billion, three hundred twenty thousand, two hundred twenty-one".