1111210019197 has 2 divisors, whose sum is σ = 1111210019198. Its totient is φ = 1111210019196.

The previous prime is 1111210019149. The next prime is 1111210019203. The reversal of 1111210019197 is 7919100121111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 935874368836 + 175335650361 = 967406^2 + 418731^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111210019197 - 2¹¹ = 1111210017149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111210019107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555605009598 + 555605009599.

It is an arithmetic number, because the mean of its divisors is an integer number (555605009599).

Almost surely, 2^{1111210019197} is an apocalyptic number.

It is an amenable number.

1111210019197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111210019197 is an equidigital number, since it uses as much as digits as its factorization.

1111210019197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 34.

The spelling of 1111210019197 in words is "one trillion, one hundred eleven billion, two hundred ten million, nineteen thousand, one hundred ninety-seven".