210200121097 has 2 divisors, whose sum is σ = 210200121098. Its totient is φ = 210200121096.

The previous prime is 210200121083. The next prime is 210200121107. The reversal of 210200121097 is 790121002012.

210200121097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162976919616 + 47223201481 = 403704^2 + 217309^2 .

It is a cyclic number.

It is not a de Polignac number, because 210200121097 - 2¹¹ = 210200119049 is a prime.

It is not a weakly prime, because it can be changed into another prime (210200121037) 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, 105100060548 + 105100060549.

It is an arithmetic number, because the mean of its divisors is an integer number (105100060549).

Almost surely, 2^210200121097 is an apocalyptic number.

It is an amenable number.

210200121097 is a deficient number, since it is larger than the sum of its proper divisors (1).

210200121097 is an equidigital number, since it uses as much as digits as its factorization.

210200121097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 210200121097 in words is "two hundred ten billion, two hundred million, one hundred twenty-one thousand, ninety-seven".