10012199987 has 2 divisors, whose sum is σ = 10012199988. Its totient is φ = 10012199986.

The previous prime is 10012199969. The next prime is 10012200053. The reversal of 10012199987 is 78999121001.

It is a weak prime.

It is an emirp because it is prime and its reverse (78999121001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10012199987 - 2²⁸ = 9743764531 is a prime.

It is not a weakly prime, because it can be changed into another prime (10012199927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006099993 + 5006099994.

It is an arithmetic number, because the mean of its divisors is an integer number (5006099994).

Almost surely, 2^10012199987 is an apocalyptic number.

10012199987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10012199987 is an equidigital number, since it uses as much as digits as its factorization.

10012199987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 47.

The spelling of 10012199987 in words is "ten billion, twelve million, one hundred ninety-nine thousand, nine hundred eighty-seven".