12014223145 has 4 divisors (see below), whose sum is σ = 14417067780. Its totient is φ = 9611378512.

The previous prime is 12014223139. The next prime is 12014223149. The reversal of 12014223145 is 54132241021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54132241021 = 467 ⋅115914863.

It can be written as a sum of positive squares in 2 ways, for example, as 6495070464 + 5519152681 = 80592^2 + 74291^2 .

It is a cyclic number.

It is not a de Polignac number, because 12014223145 - 2¹⁹ = 12013698857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12014223149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1201422310 + ... + 1201422319.

It is an arithmetic number, because the mean of its divisors is an integer number (3604266945).

Almost surely, 2^12014223145 is an apocalyptic number.

It is an amenable number.

12014223145 is a deficient number, since it is larger than the sum of its proper divisors (2402844635).

12014223145 is an equidigital number, since it uses as much as digits as its factorization.

12014223145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402844634.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 12014223145 its reverse (54132241021), we get a palindrome (66146464166).

The spelling of 12014223145 in words is "twelve billion, fourteen million, two hundred twenty-three thousand, one hundred forty-five".