2202865891 has 2 divisors, whose sum is σ = 2202865892. Its totient is φ = 2202865890.

The previous prime is 2202865879. The next prime is 2202865937. The reversal of 2202865891 is 1985682022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2202865891 - 2²⁷ = 2068648163 is a prime.

It is not a weakly prime, because it can be changed into another prime (2202865811) 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, 1101432945 + 1101432946.

It is an arithmetic number, because the mean of its divisors is an integer number (1101432946).

Almost surely, 2^2202865891 is an apocalyptic number.

2202865891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2202865891 is an equidigital number, since it uses as much as digits as its factorization.

2202865891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 2202865891 is about 46934.6981560551. The cubic root of 2202865891 is about 1301.1559523028.

The spelling of 2202865891 in words is "two billion, two hundred two million, eight hundred sixty-five thousand, eight hundred ninety-one".