100002209987 has 2 divisors, whose sum is σ = 100002209988. Its totient is φ = 100002209986.

The previous prime is 100002209981. The next prime is 100002210017. The reversal of 100002209987 is 789902200001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100002209987 - 2⁸ = 100002209731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100002209987.

It is not a weakly prime, because it can be changed into another prime (100002209981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50001104993 + 50001104994.

It is an arithmetic number, because the mean of its divisors is an integer number (50001104994).

Almost surely, 2^100002209987 is an apocalyptic number.

100002209987 is a deficient number, since it is larger than the sum of its proper divisors (1).

100002209987 is an equidigital number, since it uses as much as digits as its factorization.

100002209987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

Adding to 100002209987 its reverse (789902200001), we get a palindrome (889904409988).

The spelling of 100002209987 in words is "one hundred billion, two million, two hundred nine thousand, nine hundred eighty-seven".