10211101009987 has 2 divisors, whose sum is σ = 10211101009988. Its totient is φ = 10211101009986.

The previous prime is 10211101009909. The next prime is 10211101010021. The reversal of 10211101009987 is 78990010111201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10211101009987 - 2⁷ = 10211101009859 is a prime.

It is not a weakly prime, because it can be changed into another prime (10211101709987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105550504993 + 5105550504994.

It is an arithmetic number, because the mean of its divisors is an integer number (5105550504994).

Almost surely, 2^{10211101009987} is an apocalyptic number.

10211101009987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10211101009987 is an equidigital number, since it uses as much as digits as its factorization.

10211101009987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 40.

The spelling of 10211101009987 in words is "ten trillion, two hundred eleven billion, one hundred one million, nine thousand, nine hundred eighty-seven".