22000210891 has 2 divisors, whose sum is σ = 22000210892. Its totient is φ = 22000210890.

The previous prime is 22000210879. The next prime is 22000210933. The reversal of 22000210891 is 19801200022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22000210891 is a prime.

It is not a weakly prime, because it can be changed into another prime (22000210831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000105445 + 11000105446.

It is an arithmetic number, because the mean of its divisors is an integer number (11000105446).

Almost surely, 2^22000210891 is an apocalyptic number.

22000210891 is a deficient number, since it is larger than the sum of its proper divisors (1).

22000210891 is an equidigital number, since it uses as much as digits as its factorization.

22000210891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 22000210891 in words is "twenty-two billion, two hundred ten thousand, eight hundred ninety-one".