9911201 has 2 divisors, whose sum is σ = 9911202. Its totient is φ = 9911200.

The previous prime is 9911197. The next prime is 9911249. The reversal of 9911201 is 1021199.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7102225 + 2808976 = 2665^2 + 1676^2 .

It is an emirp because it is prime and its reverse (1021199) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9911201 - 2² = 9911197 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9911101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4955600 + 4955601.

It is an arithmetic number, because the mean of its divisors is an integer number (4955601).

Almost surely, 2^9911201 is an apocalyptic number.

It is an amenable number.

9911201 is a deficient number, since it is larger than the sum of its proper divisors (1).

9911201 is an equidigital number, since it uses as much as digits as its factorization.

9911201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 9911201 is about 3148.2059970720. The cubic root of 9911201 is about 214.8038665619.

The spelling of 9911201 in words is "nine million, nine hundred eleven thousand, two hundred one".