12120202001987 has 8 divisors (see below), whose sum is σ = 12132250398720. Its totient is φ = 12108156243400.

The previous prime is 12120202001983. The next prime is 12120202002017. The reversal of 12120202001987 is 78910020202121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12120202001987 - 2² = 12120202001983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120202001983) 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 7 ways as a sum of consecutive naturals, for example, 8597948 + ... + 9907830.

It is an arithmetic number, because the mean of its divisors is an integer number (1516531299840).

Almost surely, 2^{12120202001987} is an apocalyptic number.

12120202001987 is a deficient number, since it is larger than the sum of its proper divisors (12048396733).

12120202001987 is a wasteful number, since it uses less digits than its factorization.

12120202001987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319073.

The product of its (nonzero) digits is 8064, while the sum is 35.

The spelling of 12120202001987 in words is "twelve trillion, one hundred twenty billion, two hundred two million, one thousand, nine hundred eighty-seven".