12001113219987 has 24 divisors (see below), whose sum is σ = 17804018559600. Its totient is φ = 7784258690880.

The previous prime is 12001113219959. The next prime is 12001113219989. The reversal of 12001113219987 is 78991231110021.

12001113219987 is a `hidden beast` number, since 1 + 200 + 111 + 321 + 9 + 9 + 8 + 7 = 666.

12001113219987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12001113219987 - 2¹⁴ = 12001113203603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12001113219989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10236889 + ... + 11348837.

It is an arithmetic number, because the mean of its divisors is an integer number (741834106650).

Almost surely, 2^{12001113219987} is an apocalyptic number.

12001113219987 is a deficient number, since it is larger than the sum of its proper divisors (5802905339613).

12001113219987 is a wasteful number, since it uses less digits than its factorization.

12001113219987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144403 (or 1144400 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 45.

The spelling of 12001113219987 in words is "twelve trillion, one billion, one hundred thirteen million, two hundred nineteen thousand, nine hundred eighty-seven".