12101010197 has 2 divisors, whose sum is σ = 12101010198. Its totient is φ = 12101010196.

The previous prime is 12101010167. The next prime is 12101010203. The reversal of 12101010197 is 79101010121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10446066436 + 1654943761 = 102206^2 + 40681^2 .

It is a cyclic number.

It is not a de Polignac number, because 12101010197 - 2¹⁴ = 12100993813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12101010107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050505098 + 6050505099.

It is an arithmetic number, because the mean of its divisors is an integer number (6050505099).

Almost surely, 2^12101010197 is an apocalyptic number.

It is an amenable number.

12101010197 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101010197 is an equidigital number, since it uses as much as digits as its factorization.

12101010197 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 23.

The spelling of 12101010197 in words is "twelve billion, one hundred one million, ten thousand, one hundred ninety-seven".