12001223012154 has 16 divisors (see below), whose sum is σ = 24587871537600. Its totient is φ = 3902836751840.

The previous prime is 12001223012153. The next prime is 12001223012167. The reversal of 12001223012154 is 45121032210021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12001223012153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24392729454 + ... + 24392729945.

It is an arithmetic number, because the mean of its divisors is an integer number (1536741971100).

Almost surely, 2^{12001223012154} is an apocalyptic number.

12001223012154 is an abundant number, since it is smaller than the sum of its proper divisors (12586648525446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12001223012154 is a wasteful number, since it uses less digits than its factorization.

12001223012154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48785459445.

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

Adding to 12001223012154 its reverse (45121032210021), we get a palindrome (57122255222175).

The spelling of 12001223012154 in words is "twelve trillion, one billion, two hundred twenty-three million, twelve thousand, one hundred fifty-four".