210210200199947 has 2 divisors, whose sum is σ = 210210200199948. Its totient is φ = 210210200199946.

The previous prime is 210210200199911. The next prime is 210210200199949. The reversal of 210210200199947 is 749991002012012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210210200199947 - 2²⁴ = 210210183422731 is a prime.

Together with 210210200199949, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (210210200199949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105105100099973 + 105105100099974.

It is an arithmetic number, because the mean of its divisors is an integer number (105105100099974).

Almost surely, 2^{210210200199947} is an apocalyptic number.

210210200199947 is a deficient number, since it is larger than the sum of its proper divisors (1).

210210200199947 is an equidigital number, since it uses as much as digits as its factorization.

210210200199947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 47.

The spelling of 210210200199947 in words is "two hundred ten trillion, two hundred ten billion, two hundred million, one hundred ninety-nine thousand, nine hundred forty-seven".