213322302221 has 16 divisors (see below), whose sum is σ = 250779543168. Its totient is φ = 177647731200.

The previous prime is 213322302187. The next prime is 213322302269. The reversal of 213322302221 is 122203223312.

It is a cyclic number.

It is not a de Polignac number, because 213322302221 - 2¹⁰ = 213322301197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213322332221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1472915 + ... + 1611248.

It is an arithmetic number, because the mean of its divisors is an integer number (15673721448).

Almost surely, 2^213322302221 is an apocalyptic number.

It is an amenable number.

213322302221 is a deficient number, since it is larger than the sum of its proper divisors (37457240947).

213322302221 is a wasteful number, since it uses less digits than its factorization.

213322302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3084452.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 213322302221 its reverse (122203223312), we get a palindrome (335525525533).

The spelling of 213322302221 in words is "two hundred thirteen billion, three hundred twenty-two million, three hundred two thousand, two hundred twenty-one".