2199009911 has 8 divisors (see below), whose sum is σ = 2514740640. Its totient is φ = 1883675808.

The previous prime is 2199009907. The next prime is 2199009919. The reversal of 2199009911 is 1199009912.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2199009911 - 2² = 2199009907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199009919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87176 + ... + 109533.

It is an arithmetic number, because the mean of its divisors is an integer number (314342580).

Almost surely, 2^2199009911 is an apocalyptic number.

2199009911 is a deficient number, since it is larger than the sum of its proper divisors (315730729).

2199009911 is a wasteful number, since it uses less digits than its factorization.

2199009911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198313.

The product of its (nonzero) digits is 13122, while the sum is 41.

The square root of 2199009911 is about 46893.6020262893. The cubic root of 2199009911 is about 1300.3963113202.

Subtracting from 2199009911 its reverse (1199009912), we obtain a palindrome (999999999).

The spelling of 2199009911 in words is "two billion, one hundred ninety-nine million, nine thousand, nine hundred eleven".