128201188297229 has 2 divisors, whose sum is σ = 128201188297230. Its totient is φ = 128201188297228.

The previous prime is 128201188297211. The next prime is 128201188297241. The reversal of 128201188297229 is 922792881102821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87358838094025 + 40842350203204 = 9346595^2 + 6390802^2 .

It is a cyclic number.

It is not a de Polignac number, because 128201188297229 - 2¹² = 128201188293133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128201188297129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64100594148614 + 64100594148615.

It is an arithmetic number, because the mean of its divisors is an integer number (64100594148615).

Almost surely, 2^{128201188297229} is an apocalyptic number.

It is an amenable number.

128201188297229 is a deficient number, since it is larger than the sum of its proper divisors (1).

128201188297229 is an equidigital number, since it uses as much as digits as its factorization.

128201188297229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9289728, while the sum is 62.

The spelling of 128201188297229 in words is "one hundred twenty-eight trillion, two hundred one billion, one hundred eighty-eight million, two hundred ninety-seven thousand, two hundred twenty-nine".