2201172997 has 2 divisors, whose sum is σ = 2201172998. Its totient is φ = 2201172996.

The previous prime is 2201172989. The next prime is 2201173001. The reversal of 2201172997 is 7992711022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1811268481 + 389904516 = 42559^2 + 19746^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201172997 - 2³ = 2201172989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201172917) 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, 1100586498 + 1100586499.

It is an arithmetic number, because the mean of its divisors is an integer number (1100586499).

Almost surely, 2^2201172997 is an apocalyptic number.

It is an amenable number.

2201172997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201172997 is an equidigital number, since it uses as much as digits as its factorization.

2201172997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 2201172997 is about 46916.6601219652. The cubic root of 2201172997 is about 1300.8225557616.

The spelling of 2201172997 in words is "two billion, two hundred one million, one hundred seventy-two thousand, nine hundred ninety-seven".