212333321197 has 2 divisors, whose sum is σ = 212333321198. Its totient is φ = 212333321196.

The previous prime is 212333321191. The next prime is 212333321201. The reversal of 212333321197 is 791123333212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111445139556 + 100888181641 = 333834^2 + 317629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212333321197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212333321191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106166660598 + 106166660599.

It is an arithmetic number, because the mean of its divisors is an integer number (106166660599).

Almost surely, 2^212333321197 is an apocalyptic number.

It is an amenable number.

212333321197 is a deficient number, since it is larger than the sum of its proper divisors (1).

212333321197 is an equidigital number, since it uses as much as digits as its factorization.

212333321197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 37.

The spelling of 212333321197 in words is "two hundred twelve billion, three hundred thirty-three million, three hundred twenty-one thousand, one hundred ninety-seven".