213322220321 has 8 divisors (see below), whose sum is σ = 244318875840. Its totient is φ = 182456077968.

The previous prime is 213322220297. The next prime is 213322220323. The reversal of 213322220321 is 123022223312.

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 213322220321 - 2⁶ = 213322220257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213322220323) 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, 32624786 + ... + 32631323.

It is an arithmetic number, because the mean of its divisors is an integer number (30539859480).

Almost surely, 2^213322220321 is an apocalyptic number.

It is an amenable number.

213322220321 is a deficient number, since it is larger than the sum of its proper divisors (30996655519).

213322220321 is an equidigital number, since it uses as much as digits as its factorization.

213322220321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65256583.

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

Adding to 213322220321 its reverse (123022223312), we get a palindrome (336344443633).

The spelling of 213322220321 in words is "two hundred thirteen billion, three hundred twenty-two million, two hundred twenty thousand, three hundred twenty-one".