222123232211 has 6 divisors (see below), whose sum is σ = 235957897500. Its totient is φ = 209057159456.

The previous prime is 222123232207. The next prime is 222123232291. The reversal of 222123232211 is 112232321222.

It is a happy number.

It is not a de Polignac number, because 222123232211 - 2² = 222123232207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222123232291) 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 5 ways as a sum of consecutive naturals, for example, 384295961 + ... + 384296538.

It is an arithmetic number, because the mean of its divisors is an integer number (39326316250).

Almost surely, 2^222123232211 is an apocalyptic number.

222123232211 is a deficient number, since it is larger than the sum of its proper divisors (13834665289).

222123232211 is an equidigital number, since it uses as much as digits as its factorization.

222123232211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768592533 (or 768592516 counting only the distinct ones).

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

Adding to 222123232211 its reverse (112232321222), we get a palindrome (334355553433).

The spelling of 222123232211 in words is "two hundred twenty-two billion, one hundred twenty-three million, two hundred thirty-two thousand, two hundred eleven".