2201220971 has 2 divisors, whose sum is σ = 2201220972. Its totient is φ = 2201220970.

The previous prime is 2201220943. The next prime is 2201221019. The reversal of 2201220971 is 1790221022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2201220971 - 2⁶ = 2201220907 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2201220971.

It is not a weakly prime, because it can be changed into another prime (2201220941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100610485 + 1100610486.

It is an arithmetic number, because the mean of its divisors is an integer number (1100610486).

Almost surely, 2^2201220971 is an apocalyptic number.

2201220971 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201220971 is an equidigital number, since it uses as much as digits as its factorization.

2201220971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 2201220971 is about 46917.1713874569. The cubic root of 2201220971 is about 1300.8320060574.

Adding to 2201220971 its reverse (1790221022), we get a palindrome (3991441993).

The spelling of 2201220971 in words is "two billion, two hundred one million, two hundred twenty thousand, nine hundred seventy-one".