222323112221 has 4 divisors (see below), whose sum is σ = 254083556832. Its totient is φ = 190562667612.

The previous prime is 222323112217. The next prime is 222323112223. The reversal of 222323112221 is 122211323222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222323112221 - 2² = 222323112217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222323112223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15880222295 + ... + 15880222308.

It is an arithmetic number, because the mean of its divisors is an integer number (63520889208).

Almost surely, 2^222323112221 is an apocalyptic number.

It is an amenable number.

222323112221 is a deficient number, since it is larger than the sum of its proper divisors (31760444611).

222323112221 is an equidigital number, since it uses as much as digits as its factorization.

222323112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31760444610.

The product of its digits is 1152, while the sum is 23.

Adding to 222323112221 its reverse (122211323222), we get a palindrome (344534435443).

The spelling of 222323112221 in words is "two hundred twenty-two billion, three hundred twenty-three million, one hundred twelve thousand, two hundred twenty-one".