1010012111197 has 2 divisors, whose sum is σ = 1010012111198. Its totient is φ = 1010012111196.

The previous prime is 1010012111191. The next prime is 1010012111201. The reversal of 1010012111197 is 7911112100101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 810412252441 + 199599858756 = 900229^2 + 446766^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010012111197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010012111191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505006055598 + 505006055599.

It is an arithmetic number, because the mean of its divisors is an integer number (505006055599).

Almost surely, 2^{1010012111197} is an apocalyptic number.

It is an amenable number.

1010012111197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010012111197 is an equidigital number, since it uses as much as digits as its factorization.

1010012111197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 25.

Adding to 1010012111197 its reverse (7911112100101), we get a palindrome (8921124211298).

The spelling of 1010012111197 in words is "one trillion, ten billion, twelve million, one hundred eleven thousand, one hundred ninety-seven".