2201130991 has 2 divisors, whose sum is σ = 2201130992. Its totient is φ = 2201130990.

The previous prime is 2201130989. The next prime is 2201131003. The reversal of 2201130991 is 1990311022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2201130991 - 2¹ = 2201130989 is a prime.

Together with 2201130989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201130391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100565495 + 1100565496.

It is an arithmetic number, because the mean of its divisors is an integer number (1100565496).

Almost surely, 2^2201130991 is an apocalyptic number.

2201130991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201130991 is an equidigital number, since it uses as much as digits as its factorization.

2201130991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 2201130991 is about 46916.2124536924. The cubic root of 2201130991 is about 1300.8142809766.

The spelling of 2201130991 in words is "two billion, two hundred one million, one hundred thirty thousand, nine hundred ninety-one".