2209228911 has 12 divisors (see below), whose sum is σ = 3309297992. Its totient is φ = 1472819112.

The previous prime is 2209228909. The next prime is 2209228921. The reversal of 2209228911 is 1198229022.

2209228911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2209228911 - 2¹ = 2209228909 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 (2209228921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4545496 + ... + 4545981.

Almost surely, 2^2209228911 is an apocalyptic number.

2209228911 is a deficient number, since it is larger than the sum of its proper divisors (1100069081).

2209228911 is an frugal number, since it uses more digits than its factorization.

2209228911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9091492 (or 9091480 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 2209228911 is about 47002.4351603191. The cubic root of 2209228911 is about 1302.4075525520.

The spelling of 2209228911 in words is "two billion, two hundred nine million, two hundred twenty-eight thousand, nine hundred eleven".