12123223122120 has 64 divisors (see below), whose sum is σ = 39676002949440. Its totient is φ = 2938963180800.

The previous prime is 12123223122089. The next prime is 12123223122161. The reversal of 12123223122120 is 2122132232121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4592128651 + ... + 4592131290.

It is an arithmetic number, because the mean of its divisors is an integer number (619937546085).

Almost surely, 2^{12123223122120} is an apocalyptic number.

12123223122120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12123223122120 is an abundant number, since it is smaller than the sum of its proper divisors (27552779827320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12123223122120 is a wasteful number, since it uses less digits than its factorization.

12123223122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9184259966 (or 9184259962 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12123223122120 its reverse (2122132232121), we get a palindrome (14245355354241).

The spelling of 12123223122120 in words is "twelve trillion, one hundred twenty-three billion, two hundred twenty-three million, one hundred twenty-two thousand, one hundred twenty".