222232232221 has 8 divisors (see below), whose sum is σ = 228714884640. Its totient is φ = 215809328112.

The previous prime is 222232232213. The next prime is 222232232237. The reversal of 222232232221 is 122232232222.

222232232221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222232232221 - 2³ = 222232232213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222232232251) 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 7 ways as a sum of consecutive naturals, for example, 14929531 + ... + 14944408.

It is an arithmetic number, because the mean of its divisors is an integer number (28589360580).

Almost surely, 2^222232232221 is an apocalyptic number.

It is an amenable number.

222232232221 is a deficient number, since it is larger than the sum of its proper divisors (6482652419).

222232232221 is a wasteful number, since it uses less digits than its factorization.

222232232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29874155.

The product of its digits is 4608, while the sum is 25.

Adding to 222232232221 its reverse (122232232222), we get a palindrome (344464464443).

Subtracting from 222232232221 its reverse (122232232222), we obtain a palindrome (99999999999).

The spelling of 222232232221 in words is "two hundred twenty-two billion, two hundred thirty-two million, two hundred thirty-two thousand, two hundred twenty-one".