9291120001201 has 2 divisors, whose sum is σ = 9291120001202. Its totient is φ = 9291120001200.

The previous prime is 9291120001187. The next prime is 9291120001217. The reversal of 9291120001201 is 1021000211929.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8468978842801 + 822141158400 = 2910151^2 + 906720^2 .

It is a cyclic number.

It is not a de Polignac number, because 9291120001201 - 2⁹ = 9291120000689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9291120001201.

It is not a weakly prime, because it can be changed into another prime (9291120001291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4645560000600 + 4645560000601.

It is an arithmetic number, because the mean of its divisors is an integer number (4645560000601).

Almost surely, 2^{9291120001201} is an apocalyptic number.

It is an amenable number.

9291120001201 is a deficient number, since it is larger than the sum of its proper divisors (1).

9291120001201 is an equidigital number, since it uses as much as digits as its factorization.

9291120001201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 9291120001201 in words is "nine trillion, two hundred ninety-one billion, one hundred twenty million, one thousand, two hundred one".