222112212210123 has 4 divisors (see below), whose sum is σ = 296149616280168. Its totient is φ = 148074808140080.

The previous prime is 222112212210023. The next prime is 222112212210209. The reversal of 222112212210123 is 321012212211222.

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

It is a cyclic number.

It is not a de Polignac number, because 222112212210123 - 2¹³ = 222112212201931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222112212210093 and 222112212210102.

It is not an unprimeable number, because it can be changed into a prime (222112212210023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37018702035018 + ... + 37018702035023.

It is an arithmetic number, because the mean of its divisors is an integer number (74037404070042).

Almost surely, 2^{222112212210123} is an apocalyptic number.

222112212210123 is a deficient number, since it is larger than the sum of its proper divisors (74037404070045).

222112212210123 is an equidigital number, since it uses as much as digits as its factorization.

222112212210123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74037404070044.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 222112212210123 its reverse (321012212211222), we get a palindrome (543124424421345).

The spelling of 222112212210123 in words is "two hundred twenty-two trillion, one hundred twelve billion, two hundred twelve million, two hundred ten thousand, one hundred twenty-three".