222203123 has 4 divisors (see below), whose sum is σ = 222309240. Its totient is φ = 222097008.

The previous prime is 222203101. The next prime is 222203129. The reversal of 222203123 is 321302222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321302222 = 2 ⋅160651111.

It is a cyclic number.

It is not a de Polignac number, because 222203123 - 2⁸ = 222202867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222203129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49853 + ... + 54126.

It is an arithmetic number, because the mean of its divisors is an integer number (55577310).

Almost surely, 2^222203123 is an apocalyptic number.

222203123 is a deficient number, since it is larger than the sum of its proper divisors (106117).

222203123 is a wasteful number, since it uses less digits than its factorization.

222203123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106116.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 222203123 is about 14906.4792288454. The cubic root of 222203123 is about 605.6895109852.

Adding to 222203123 its reverse (321302222), we get a palindrome (543505345).

Subtracting 222203123 from its reverse (321302222), we obtain a palindrome (99099099).

The spelling of 222203123 in words is "two hundred twenty-two million, two hundred three thousand, one hundred twenty-three".