222123256 has 8 divisors (see below), whose sum is σ = 416481120. Its totient is φ = 111061624.

The previous prime is 222123229. The next prime is 222123257. The reversal of 222123256 is 652321222.

It is a happy number.

222123256 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 222123256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222123257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13882696 + ... + 13882711.

It is an arithmetic number, because the mean of its divisors is an integer number (52060140).

Almost surely, 2^222123256 is an apocalyptic number.

It is an amenable number.

222123256 is a deficient number, since it is larger than the sum of its proper divisors (194357864).

222123256 is a wasteful number, since it uses less digits than its factorization.

222123256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27765413 (or 27765409 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 222123256 is about 14903.8000523356. The cubic root of 222123256 is about 605.6169341458.

Adding to 222123256 its reverse (652321222), we get a palindrome (874444478).

The spelling of 222123256 in words is "two hundred twenty-two million, one hundred twenty-three thousand, two hundred fifty-six".