221323330322 has 4 divisors (see below), whose sum is σ = 331984995486. Its totient is φ = 110661665160.

The previous prime is 221323330211. The next prime is 221323330331. The reversal of 221323330322 is 223033323122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 162206757001 + 59116573321 = 402749^2 + 243139^2 .

It is a super-2 number, since 2×221323330322² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221323330291 and 221323330300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55330832579 + ... + 55330832582.

Almost surely, 2^221323330322 is an apocalyptic number.

221323330322 is a deficient number, since it is larger than the sum of its proper divisors (110661665164).

221323330322 is a wasteful number, since it uses less digits than its factorization.

221323330322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110661665163.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 221323330322 its reverse (223033323122), we get a palindrome (444356653444).

The spelling of 221323330322 in words is "two hundred twenty-one billion, three hundred twenty-three million, three hundred thirty thousand, three hundred twenty-two".