221321222332 has 12 divisors (see below), whose sum is σ = 442642444720. Its totient is φ = 94851952416.

The previous prime is 221321222303. The next prime is 221321222357. The reversal of 221321222332 is 233222123122.

221321222332 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 221321222297 and 221321222306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3952164657 + ... + 3952164712.

Almost surely, 2^221321222332 is an apocalyptic number.

It is an amenable number.

221321222332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221321222332 is a wasteful number, since it uses less digits than its factorization.

221321222332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7904329380 (or 7904329378 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

Adding to 221321222332 its reverse (233222123122), we get a palindrome (454543345454).

The spelling of 221321222332 in words is "two hundred twenty-one billion, three hundred twenty-one million, two hundred twenty-two thousand, three hundred thirty-two".