12001222011223 has 2 divisors, whose sum is σ = 12001222011224. Its totient is φ = 12001222011222.

The previous prime is 12001222011199. The next prime is 12001222011239. The reversal of 12001222011223 is 32211022210021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12001222011223 - 2⁹ = 12001222010711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12001222011223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12001222017223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000611005611 + 6000611005612.

It is an arithmetic number, because the mean of its divisors is an integer number (6000611005612).

Almost surely, 2^{12001222011223} is an apocalyptic number.

12001222011223 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001222011223 is an equidigital number, since it uses as much as digits as its factorization.

12001222011223 is an evil number, because the sum of its binary digits is even.

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

Adding to 12001222011223 its reverse (32211022210021), we get a palindrome (44212244221244).

The spelling of 12001222011223 in words is "twelve trillion, one billion, two hundred twenty-two million, eleven thousand, two hundred twenty-three".