12012100222123 has 12 divisors (see below), whose sum is σ = 12441942211608. Its totient is φ = 11596632696320.

The previous prime is 12012100222117. The next prime is 12012100222169. The reversal of 12012100222123 is 32122200121021.

It is not a de Polignac number, because 12012100222123 - 2⁵ = 12012100222091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12012100222123.

It is not an unprimeable number, because it can be changed into a prime (12012100222183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7035840 + ... + 8574802.

It is an arithmetic number, because the mean of its divisors is an integer number (1036828517634).

Almost surely, 2^{12012100222123} is an apocalyptic number.

12012100222123 is a deficient number, since it is larger than the sum of its proper divisors (429841989485).

12012100222123 is an equidigital number, since it uses as much as digits as its factorization.

12012100222123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548302 (or 1548273 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12012100222123 its reverse (32122200121021), we get a palindrome (44134300343144).

The spelling of 12012100222123 in words is "twelve trillion, twelve billion, one hundred million, two hundred twenty-two thousand, one hundred twenty-three".