1202102012197 has 2 divisors, whose sum is σ = 1202102012198. Its totient is φ = 1202102012196.

The previous prime is 1202102012191. The next prime is 1202102012227. The reversal of 1202102012197 is 7912102012021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1147535855361 + 54566156836 = 1071231^2 + 233594^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202102012197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202102012191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601051006098 + 601051006099.

It is an arithmetic number, because the mean of its divisors is an integer number (601051006099).

Almost surely, 2^{1202102012197} is an apocalyptic number.

It is an amenable number.

1202102012197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202102012197 is an equidigital number, since it uses as much as digits as its factorization.

1202102012197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 1202102012197 in words is "one trillion, two hundred two billion, one hundred two million, twelve thousand, one hundred ninety-seven".