2012100999187 has 2 divisors, whose sum is σ = 2012100999188. Its totient is φ = 2012100999186.

The previous prime is 2012100999169. The next prime is 2012100999193. The reversal of 2012100999187 is 7819990012102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2012100999187 - 2³¹ = 2009953515539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2012100999187.

It is not a weakly prime, because it can be changed into another prime (2012100999107) 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, 1006050499593 + 1006050499594.

It is an arithmetic number, because the mean of its divisors is an integer number (1006050499594).

Almost surely, 2^{2012100999187} is an apocalyptic number.

2012100999187 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012100999187 is an equidigital number, since it uses as much as digits as its factorization.

2012100999187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 49.

The spelling of 2012100999187 in words is "two trillion, twelve billion, one hundred million, nine hundred ninety-nine thousand, one hundred eighty-seven".