12012120201345 has 64 divisors (see below), whose sum is σ = 21099013705728. Its totient is φ = 5787387200000.

The previous prime is 12012120201331. The next prime is 12012120201379. The reversal of 12012120201345 is 54310202121021.

It is a happy number.

It is not a de Polignac number, because 12012120201345 - 2⁴ = 12012120201329 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17513389 + ... + 18186341.

It is an arithmetic number, because the mean of its divisors is an integer number (329672089152).

Almost surely, 2^{12012120201345} is an apocalyptic number.

12012120201345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12012120201345 is a deficient number, since it is larger than the sum of its proper divisors (9086893504383).

12012120201345 is a wasteful number, since it uses less digits than its factorization.

12012120201345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673654.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 12012120201345 its reverse (54310202121021), we get a palindrome (66322322322366).

The spelling of 12012120201345 in words is "twelve trillion, twelve billion, one hundred twenty million, two hundred one thousand, three hundred forty-five".