2220210191 has 2 divisors, whose sum is σ = 2220210192. Its totient is φ = 2220210190.

The previous prime is 2220210163. The next prime is 2220210221. The reversal of 2220210191 is 1910120222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2220210191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2220210491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110105095 + 1110105096.

It is an arithmetic number, because the mean of its divisors is an integer number (1110105096).

Almost surely, 2^2220210191 is an apocalyptic number.

2220210191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220210191 is an equidigital number, since it uses as much as digits as its factorization.

2220210191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 2220210191 is about 47119.1064325290. The cubic root of 2220210191 is about 1304.5619196703.

The spelling of 2220210191 in words is "two billion, two hundred twenty million, two hundred ten thousand, one hundred ninety-one".