12012002121254 has 24 divisors (see below), whose sum is σ = 18638406522792. Its totient is φ = 5802624331680.

The previous prime is 12012002121253. The next prime is 12012002121281. The reversal of 12012002121254 is 45212120021021.

12012002121254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12012002121254² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012002121253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6034004 + ... + 7773879.

It is an arithmetic number, because the mean of its divisors is an integer number (776600271783).

Almost surely, 2^{12012002121254} is an apocalyptic number.

12012002121254 is a deficient number, since it is larger than the sum of its proper divisors (6626404401538).

12012002121254 is a wasteful number, since it uses less digits than its factorization.

12012002121254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13808132 (or 13808029 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 12012002121254 its reverse (45212120021021), we get a palindrome (57224122142275).

The spelling of 12012002121254 in words is "twelve trillion, twelve billion, two million, one hundred twenty-one thousand, two hundred fifty-four".