222123223321 has 4 divisors (see below), whose sum is σ = 222187257700. Its totient is φ = 222059188944.

The previous prime is 222123223319. The next prime is 222123223367. The reversal of 222123223321 is 123322321222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 65057644096 + 157065579225 = 255064^2 + 396315^2 .

It is a cyclic number.

It is not a de Polignac number, because 222123223321 - 2¹ = 222123223319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222123224321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32011986 + ... + 32018923.

It is an arithmetic number, because the mean of its divisors is an integer number (55546814425).

Almost surely, 2^222123223321 is an apocalyptic number.

It is an amenable number.

222123223321 is a deficient number, since it is larger than the sum of its proper divisors (64034379).

222123223321 is an equidigital number, since it uses as much as digits as its factorization.

222123223321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64034378.

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

Adding to 222123223321 its reverse (123322321222), we get a palindrome (345445544543).

The spelling of 222123223321 in words is "two hundred twenty-two billion, one hundred twenty-three million, two hundred twenty-three thousand, three hundred twenty-one".