222312230221 has 8 divisors (see below), whose sum is σ = 235548386424. Its totient is φ = 209093736960.

The previous prime is 222312230207. The next prime is 222312230237. The reversal of 222312230221 is 122032213222.

It can be written as a sum of positive squares in 4 ways, for example, as 8048781225 + 214263448996 = 89715^2 + 462886^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 222312230221 - 2⁷ = 222312230093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222312230192 and 222312230201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222312230521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4389810 + ... + 4440163.

It is an arithmetic number, because the mean of its divisors is an integer number (29443548303).

Almost surely, 2^222312230221 is an apocalyptic number.

It is an amenable number.

222312230221 is a deficient number, since it is larger than the sum of its proper divisors (13236156203).

222312230221 is a wasteful number, since it uses less digits than its factorization.

222312230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8831471.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 222312230221 its reverse (122032213222), we get a palindrome (344344443443).

The spelling of 222312230221 in words is "two hundred twenty-two billion, three hundred twelve million, two hundred thirty thousand, two hundred twenty-one".