1201322402197 has 2 divisors, whose sum is σ = 1201322402198. Its totient is φ = 1201322402196.

The previous prime is 1201322402149. The next prime is 1201322402263. The reversal of 1201322402197 is 7912042231021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1133701080516 + 67621321681 = 1064754^2 + 260041^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201322402197 - 2³¹ = 1199174918549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201322402897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600661201098 + 600661201099.

It is an arithmetic number, because the mean of its divisors is an integer number (600661201099).

Almost surely, 2^{1201322402197} is an apocalyptic number.

It is an amenable number.

1201322402197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201322402197 is an equidigital number, since it uses as much as digits as its factorization.

1201322402197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 1201322402197 in words is "one trillion, two hundred one billion, three hundred twenty-two million, four hundred two thousand, one hundred ninety-seven".