12020011221187 has 2 divisors, whose sum is σ = 12020011221188. Its totient is φ = 12020011221186.

The previous prime is 12020011221181. The next prime is 12020011221209. The reversal of 12020011221187 is 78112211002021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12020011221187 - 2⁴³ = 3223918198979 is a prime.

It is a super-2 number, since 2×12020011221187² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12020011221181) 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 as a sum of consecutive naturals, namely, 6010005610593 + 6010005610594.

It is an arithmetic number, because the mean of its divisors is an integer number (6010005610594).

Almost surely, 2^{12020011221187} is an apocalyptic number.

12020011221187 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020011221187 is an equidigital number, since it uses as much as digits as its factorization.

12020011221187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 28.

The spelling of 12020011221187 in words is "twelve trillion, twenty billion, eleven million, two hundred twenty-one thousand, one hundred eighty-seven".