242202042197 has 2 divisors, whose sum is σ = 242202042198. Its totient is φ = 242202042196.

The previous prime is 242202042161. The next prime is 242202042239. The reversal of 242202042197 is 791240202242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155130425956 + 87071616241 = 393866^2 + 295079^2 .

It is a cyclic number.

It is not a de Polignac number, because 242202042197 - 2³⁶ = 173482565461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242202042107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121101021098 + 121101021099.

It is an arithmetic number, because the mean of its divisors is an integer number (121101021099).

Almost surely, 2^242202042197 is an apocalyptic number.

It is an amenable number.

242202042197 is a deficient number, since it is larger than the sum of its proper divisors (1).

242202042197 is an equidigital number, since it uses as much as digits as its factorization.

242202042197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 242202042197 in words is "two hundred forty-two billion, two hundred two million, forty-two thousand, one hundred ninety-seven".