12020112187 has 2 divisors, whose sum is σ = 12020112188. Its totient is φ = 12020112186.

The previous prime is 12020112163. The next prime is 12020112197. The reversal of 12020112187 is 78121102021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12020112187 - 2²⁷ = 11885894459 is a prime.

It is not a weakly prime, because it can be changed into another prime (12020112197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010056093 + 6010056094.

It is an arithmetic number, because the mean of its divisors is an integer number (6010056094).

Almost surely, 2^12020112187 is an apocalyptic number.

12020112187 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020112187 is an equidigital number, since it uses as much as digits as its factorization.

12020112187 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 25.

The spelling of 12020112187 in words is "twelve billion, twenty million, one hundred twelve thousand, one hundred eighty-seven".