221320201322 has 32 divisors (see below), whose sum is σ = 366424121088. Its totient is φ = 99419400000.

The previous prime is 221320201321. The next prime is 221320201339. The reversal of 221320201322 is 223102023122.

It is a happy number.

221320201322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221320201322² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221320201294 and 221320201303.

It is not an unprimeable number, because it can be changed into a prime (221320201321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110047 + ... + 1294157.

It is an arithmetic number, because the mean of its divisors is an integer number (11450753784).

Almost surely, 2^221320201322 is an apocalyptic number.

221320201322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221320201322 is a deficient number, since it is larger than the sum of its proper divisors (145103919766).

221320201322 is a wasteful number, since it uses less digits than its factorization.

221320201322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184766.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 221320201322 its reverse (223102023122), we get a palindrome (444422224444).

The spelling of 221320201322 in words is "two hundred twenty-one billion, three hundred twenty million, two hundred one thousand, three hundred twenty-two".