121112222123223 has 24 divisors (see below), whose sum is σ = 175004264853600. Its totient is φ = 80711767319040.

The previous prime is 121112222123183. The next prime is 121112222123227. The reversal of 121112222123223 is 322321222211121.

121112222123223 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 1 + 222 + 212 + 3 + 223 = 666.

It is not a de Polignac number, because 121112222123223 - 2⁶ = 121112222123159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112222123227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 421569558 + ... + 421856748.

It is an arithmetic number, because the mean of its divisors is an integer number (7291844368900).

Almost surely, 2^{121112222123223} is an apocalyptic number.

121112222123223 is a deficient number, since it is larger than the sum of its proper divisors (53892042730377).

121112222123223 is a wasteful number, since it uses less digits than its factorization.

121112222123223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304279 (or 304276 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 121112222123223 its reverse (322321222211121), we get a palindrome (443433444334344).

The spelling of 121112222123223 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred twenty-two million, one hundred twenty-three thousand, two hundred twenty-three".