12018998114721 has 256 divisors, whose sum is σ = 20447037112320. Its totient is φ = 6927512739840.

The previous prime is 12018998114701. The next prime is 12018998114759. The reversal of 12018998114721 is 12741189981021.

It is a happy number.

12018998114721 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 8 + 99 + 81 + 1 + 472 + 1 = 666.

It is not a de Polignac number, because 12018998114721 - 2⁵ = 12018998114689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12018998114701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 15271915890 + ... + 15271916676.

It is an arithmetic number, because the mean of its divisors is an integer number (79871238720).

Almost surely, 2^{12018998114721} is an apocalyptic number.

It is an amenable number.

12018998114721 is a deficient number, since it is larger than the sum of its proper divisors (8428038997599).

12018998114721 is a wasteful number, since it uses less digits than its factorization.

12018998114721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301 (or 1295 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 54.

The spelling of 12018998114721 in words is "twelve trillion, eighteen billion, nine hundred ninety-eight million, one hundred fourteen thousand, seven hundred twenty-one".