2202011891 has 2 divisors, whose sum is σ = 2202011892. Its totient is φ = 2202011890.

The previous prime is 2202011873. The next prime is 2202011893. The reversal of 2202011891 is 1981102022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2202011891 - 2³⁰ = 1128270067 is a prime.

Together with 2202011893, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2202011891.

It is not a weakly prime, because it can be changed into another prime (2202011893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101005945 + 1101005946.

It is an arithmetic number, because the mean of its divisors is an integer number (1101005946).

Almost surely, 2^2202011891 is an apocalyptic number.

2202011891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2202011891 is an equidigital number, since it uses as much as digits as its factorization.

2202011891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 2202011891 is about 46925.5995273369. The cubic root of 2202011891 is about 1300.9877879110.

The spelling of 2202011891 in words is "two billion, two hundred two million, eleven thousand, eight hundred ninety-one".