2201021191 has 2 divisors, whose sum is σ = 2201021192. Its totient is φ = 2201021190.

The previous prime is 2201021159. The next prime is 2201021197. The reversal of 2201021191 is 1911201022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2201021191 - 2⁵ = 2201021159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201021197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100510595 + 1100510596.

It is an arithmetic number, because the mean of its divisors is an integer number (1100510596).

Almost surely, 2^2201021191 is an apocalyptic number.

2201021191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201021191 is an equidigital number, since it uses as much as digits as its factorization.

2201021191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 2201021191 is about 46915.0422679123. The cubic root of 2201021191 is about 1300.7926509171.

The spelling of 2201021191 in words is "two billion, two hundred one million, twenty-one thousand, one hundred ninety-one".