211210022202097 has 2 divisors, whose sum is σ = 211210022202098. Its totient is φ = 211210022202096.

The previous prime is 211210022202073. The next prime is 211210022202149. The reversal of 211210022202097 is 790202220012112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168768393405921 + 42441628796176 = 12991089^2 + 6514724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211210022202097 is a prime.

It is a super-2 number, since 2×211210022202097² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211210022202397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105605011101048 + 105605011101049.

It is an arithmetic number, because the mean of its divisors is an integer number (105605011101049).

Almost surely, 2^{211210022202097} is an apocalyptic number.

It is an amenable number.

211210022202097 is a deficient number, since it is larger than the sum of its proper divisors (1).

211210022202097 is an equidigital number, since it uses as much as digits as its factorization.

211210022202097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 211210022202097 in words is "two hundred eleven trillion, two hundred ten billion, twenty-two million, two hundred two thousand, ninety-seven".