211470299897 has 2 divisors, whose sum is σ = 211470299898. Its totient is φ = 211470299896.

The previous prime is 211470299869. The next prime is 211470299899. The reversal of 211470299897 is 798992074112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211470299881 + 16 = 459859^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 211470299897 - 2²⁴ = 211453522681 is a prime.

Together with 211470299899, 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 (211470299899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105735149948 + 105735149949.

It is an arithmetic number, because the mean of its divisors is an integer number (105735149949).

Almost surely, 2^211470299897 is an apocalyptic number.

It is an amenable number.

211470299897 is a deficient number, since it is larger than the sum of its proper divisors (1).

211470299897 is an equidigital number, since it uses as much as digits as its factorization.

211470299897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 59.

The spelling of 211470299897 in words is "two hundred eleven billion, four hundred seventy million, two hundred ninety-nine thousand, eight hundred ninety-seven".