2205111312 has 60 divisors (see below), whose sum is σ = 6275870640. Its totient is φ = 722576064.

The previous prime is 2205111299. The next prime is 2205111317. The reversal of 2205111312 is 2131115022.

2205111312 is a `hidden beast` number, since 2 + 20 + 511 + 131 + 2 = 666.

It is a super-2 number, since 2×2205111312² = 9725031796620722688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2205111317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121278 + ... + 138269.

It is an arithmetic number, because the mean of its divisors is an integer number (104597844).

Almost surely, 2^2205111312 is an apocalyptic number.

It is an amenable number.

2205111312 is an abundant number, since it is smaller than the sum of its proper divisors (4070759328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2205111312 is a wasteful number, since it uses less digits than its factorization.

2205111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259620 (or 259611 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 2205111312 is about 46958.6127563411. The cubic root of 2205111312 is about 1301.5978994316.

Adding to 2205111312 its reverse (2131115022), we get a palindrome (4336226334).

The spelling of 2205111312 in words is "two billion, two hundred five million, one hundred eleven thousand, three hundred twelve".