1201210009187 has 2 divisors, whose sum is σ = 1201210009188. Its totient is φ = 1201210009186.

The previous prime is 1201210009159. The next prime is 1201210009213. The reversal of 1201210009187 is 7819000121021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201210009187 - 2¹⁴ = 1201209992803 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201210000187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600605004593 + 600605004594.

It is an arithmetic number, because the mean of its divisors is an integer number (600605004594).

Almost surely, 2^{1201210009187} is an apocalyptic number.

1201210009187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201210009187 is an equidigital number, since it uses as much as digits as its factorization.

1201210009187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 32.

The spelling of 1201210009187 in words is "one trillion, two hundred one billion, two hundred ten million, nine thousand, one hundred eighty-seven".