211010202211987 has 2 divisors, whose sum is σ = 211010202211988. Its totient is φ = 211010202211986.

The previous prime is 211010202211981. The next prime is 211010202212003. The reversal of 211010202211987 is 789112202010112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211010202211987 - 2³ = 211010202211979 is a prime.

It is not a weakly prime, because it can be changed into another prime (211010202211981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105505101105993 + 105505101105994.

It is an arithmetic number, because the mean of its divisors is an integer number (105505101105994).

Almost surely, 2^{211010202211987} is an apocalyptic number.

211010202211987 is a deficient number, since it is larger than the sum of its proper divisors (1).

211010202211987 is an equidigital number, since it uses as much as digits as its factorization.

211010202211987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 37.

The spelling of 211010202211987 in words is "two hundred eleven trillion, ten billion, two hundred two million, two hundred eleven thousand, nine hundred eighty-seven".