212000001197 has 2 divisors, whose sum is σ = 212000001198. Its totient is φ = 212000001196.

The previous prime is 212000001167. The next prime is 212000001221. The reversal of 212000001197 is 791100000212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180069527716 + 31930473481 = 424346^2 + 178691^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212000001197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212000001127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106000000598 + 106000000599.

It is an arithmetic number, because the mean of its divisors is an integer number (106000000599).

Almost surely, 2^212000001197 is an apocalyptic number.

It is an amenable number.

212000001197 is a deficient number, since it is larger than the sum of its proper divisors (1).

212000001197 is an equidigital number, since it uses as much as digits as its factorization.

212000001197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 23.

The spelling of 212000001197 in words is "two hundred twelve billion, one thousand, one hundred ninety-seven".