12220123123 has 32 divisors (see below), whose sum is σ = 13896489600. Its totient is φ = 10661477376.

The previous prime is 12220123121. The next prime is 12220123159. The reversal of 12220123123 is 32132102221.

12220123123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12220123123 - 2¹ = 12220123121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12220123123.

It is not an unprimeable number, because it can be changed into a prime (12220123121) 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 31 ways as a sum of consecutive naturals, for example, 11018493 + ... + 11019601.

It is an arithmetic number, because the mean of its divisors is an integer number (434265300).

Almost surely, 2^12220123123 is an apocalyptic number.

12220123123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12220123123 is a deficient number, since it is larger than the sum of its proper divisors (1676366477).

12220123123 is a wasteful number, since it uses less digits than its factorization.

12220123123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12220123123 its reverse (32132102221), we get a palindrome (44352225344).

The spelling of 12220123123 in words is "twelve billion, two hundred twenty million, one hundred twenty-three thousand, one hundred twenty-three".