99208991201 has 2 divisors, whose sum is σ = 99208991202. Its totient is φ = 99208991200.

The previous prime is 99208991197. The next prime is 99208991239. The reversal of 99208991201 is 10219980299.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98706558976 + 502432225 = 314176^2 + 22415^2 .

It is an emirp because it is prime and its reverse (10219980299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99208991201 - 2² = 99208991197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99208991201.

It is not a weakly prime, because it can be changed into another prime (99208991251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49604495600 + 49604495601.

It is an arithmetic number, because the mean of its divisors is an integer number (49604495601).

Almost surely, 2^99208991201 is an apocalyptic number.

It is an amenable number.

99208991201 is a deficient number, since it is larger than the sum of its proper divisors (1).

99208991201 is an equidigital number, since it uses as much as digits as its factorization.

99208991201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 50.

The spelling of 99208991201 in words is "ninety-nine billion, two hundred eight million, nine hundred ninety-one thousand, two hundred one".