1012212000197 has 2 divisors, whose sum is σ = 1012212000198. Its totient is φ = 1012212000196.

The previous prime is 1012212000139. The next prime is 1012212000227. The reversal of 1012212000197 is 7910002122101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 989087931841 + 23124068356 = 994529^2 + 152066^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012212000197 - 2⁶ = 1012212000133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012212050197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506106000098 + 506106000099.

It is an arithmetic number, because the mean of its divisors is an integer number (506106000099).

Almost surely, 2^{1012212000197} is an apocalyptic number.

It is an amenable number.

1012212000197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012212000197 is an equidigital number, since it uses as much as digits as its factorization.

1012212000197 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 26.

Adding to 1012212000197 its reverse (7910002122101), we get a palindrome (8922214122298).

The spelling of 1012212000197 in words is "one trillion, twelve billion, two hundred twelve million, one hundred ninety-seven", and thus it is an aban number.