2209012111 has 4 divisors (see below), whose sum is σ = 2229657192. Its totient is φ = 2188367032.

The previous prime is 2209012109. The next prime is 2209012133. The reversal of 2209012111 is 1112109022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1112109022 = 2 ⋅556054511.

It is a cyclic number.

It is not a de Polignac number, because 2209012111 - 2¹ = 2209012109 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 (2209012711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10322380 + ... + 10322593.

It is an arithmetic number, because the mean of its divisors is an integer number (557414298).

Almost surely, 2^2209012111 is an apocalyptic number.

2209012111 is a deficient number, since it is larger than the sum of its proper divisors (20645081).

2209012111 is a wasteful number, since it uses less digits than its factorization.

2209012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20645080.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 2209012111 is about 47000.1288402489. The cubic root of 2209012111 is about 1302.3649477631.

The spelling of 2209012111 in words is "two billion, two hundred nine million, twelve thousand, one hundred eleven".