222012320123 has 6 divisors (see below), whose sum is σ = 244030071012. Its totient is φ = 201829381820.

The previous prime is 222012320119. The next prime is 222012320129. The reversal of 222012320123 is 321023210222.

It is a happy number.

It is not a de Polignac number, because 222012320123 - 2² = 222012320119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222012320095 and 222012320104.

It is not an unprimeable number, because it can be changed into a prime (222012320129) 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, 917406161 + ... + 917406402.

It is an arithmetic number, because the mean of its divisors is an integer number (40671678502).

Almost surely, 2^222012320123 is an apocalyptic number.

222012320123 is a deficient number, since it is larger than the sum of its proper divisors (22017750889).

222012320123 is a wasteful number, since it uses less digits than its factorization.

222012320123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834812585 (or 1834812574 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 222012320123 its reverse (321023210222), we get a palindrome (543035530345).

The spelling of 222012320123 in words is "two hundred twenty-two billion, twelve million, three hundred twenty thousand, one hundred twenty-three".