12001212130223 has 4 divisors (see below), whose sum is σ = 12707165784960. Its totient is φ = 11295258475488.

The previous prime is 12001212130211. The next prime is 12001212130249. The reversal of 12001212130223 is 32203121210021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12001212130223 - 2⁸ = 12001212129967 is a prime.

It is a super-2 number, since 2×12001212130223² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001212130195 and 12001212130204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001212130253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352976827343 + ... + 352976827376.

It is an arithmetic number, because the mean of its divisors is an integer number (3176791446240).

Almost surely, 2^{12001212130223} is an apocalyptic number.

12001212130223 is a deficient number, since it is larger than the sum of its proper divisors (705953654737).

12001212130223 is an equidigital number, since it uses as much as digits as its factorization.

12001212130223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705953654736.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12001212130223 its reverse (32203121210021), we get a palindrome (44204333340244).

The spelling of 12001212130223 in words is "twelve trillion, one billion, two hundred twelve million, one hundred thirty thousand, two hundred twenty-three".