2211838897 has 2 divisors, whose sum is σ = 2211838898. Its totient is φ = 2211838896.

The previous prime is 2211838883. The next prime is 2211838969. The reversal of 2211838897 is 7988381122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1648441201 + 563397696 = 40601^2 + 23736^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211838897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2211838897.

It is not a weakly prime, because it can be changed into another prime (2211838817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105919448 + 1105919449.

It is an arithmetic number, because the mean of its divisors is an integer number (1105919449).

Almost surely, 2^2211838897 is an apocalyptic number.

It is an amenable number.

2211838897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211838897 is an equidigital number, since it uses as much as digits as its factorization.

2211838897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 49.

The square root of 2211838897 is about 47030.1913349287. The cubic root of 2211838897 is about 1302.9202393855.

The spelling of 2211838897 in words is "two billion, two hundred eleven million, eight hundred thirty-eight thousand, eight hundred ninety-seven".