212210303197 has 2 divisors, whose sum is σ = 212210303198. Its totient is φ = 212210303196.

The previous prime is 212210303113. The next prime is 212210303269. The reversal of 212210303197 is 791303012212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204562625796 + 7647677401 = 452286^2 + 87451^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212210303197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212210903197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106105151598 + 106105151599.

It is an arithmetic number, because the mean of its divisors is an integer number (106105151599).

Almost surely, 2^212210303197 is an apocalyptic number.

It is an amenable number.

212210303197 is a deficient number, since it is larger than the sum of its proper divisors (1).

212210303197 is an equidigital number, since it uses as much as digits as its factorization.

212210303197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The spelling of 212210303197 in words is "two hundred twelve billion, two hundred ten million, three hundred three thousand, one hundred ninety-seven".