2198219911 has 2 divisors, whose sum is σ = 2198219912. Its totient is φ = 2198219910.

The previous prime is 2198219893. The next prime is 2198219921. The reversal of 2198219911 is 1199128912.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2198219911 - 2⁷ = 2198219783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2198219921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1099109955 + 1099109956.

It is an arithmetic number, because the mean of its divisors is an integer number (1099109956).

Almost surely, 2^2198219911 is an apocalyptic number.

2198219911 is a deficient number, since it is larger than the sum of its proper divisors (1).

2198219911 is an equidigital number, since it uses as much as digits as its factorization.

2198219911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 43.

The square root of 2198219911 is about 46885.1779457005. The cubic root of 2198219911 is about 1300.2405690887.

Subtracting from 2198219911 its reverse (1199128912), we obtain a palindrome (999090999).

The spelling of 2198219911 in words is "two billion, one hundred ninety-eight million, two hundred nineteen thousand, nine hundred eleven".