12020111002187 has 2 divisors, whose sum is σ = 12020111002188. Its totient is φ = 12020111002186.

The previous prime is 12020111002171. The next prime is 12020111002223. The reversal of 12020111002187 is 78120011102021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12020111002187 - 2⁴ = 12020111002171 is a prime.

It is not a weakly prime, because it can be changed into another prime (12020111002127) 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, 6010055501093 + 6010055501094.

It is an arithmetic number, because the mean of its divisors is an integer number (6010055501094).

Almost surely, 2^{12020111002187} is an apocalyptic number.

12020111002187 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020111002187 is an equidigital number, since it uses as much as digits as its factorization.

12020111002187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 26.

The spelling of 12020111002187 in words is "twelve trillion, twenty billion, one hundred eleven million, two thousand, one hundred eighty-seven".