213320220001 has 4 divisors (see below), whose sum is σ = 243794537152. Its totient is φ = 182845902852.

The previous prime is 213320219963. The next prime is 213320220017. The reversal of 213320220001 is 100022023312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213320220001 - 2¹⁹ = 213319695713 is a prime.

It is a super-2 number, since 2×213320220001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213320220601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15237158565 + ... + 15237158578.

It is an arithmetic number, because the mean of its divisors is an integer number (60948634288).

Almost surely, 2^213320220001 is an apocalyptic number.

It is an amenable number.

213320220001 is a deficient number, since it is larger than the sum of its proper divisors (30474317151).

213320220001 is an equidigital number, since it uses as much as digits as its factorization.

213320220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30474317150.

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

Adding to 213320220001 its reverse (100022023312), we get a palindrome (313342243313).

The spelling of 213320220001 in words is "two hundred thirteen billion, three hundred twenty million, two hundred twenty thousand, one".