2205621104 has 40 divisors (see below), whose sum is σ = 4338993120. Its totient is φ = 1086006528.

The previous prime is 2205621083. The next prime is 2205621109. The reversal of 2205621104 is 4011265022.

It is a happy number.

2205621104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2205621104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205621109) 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, 287462 + ... + 295034.

It is an arithmetic number, because the mean of its divisors is an integer number (108474828).

Almost surely, 2^2205621104 is an apocalyptic number.

It is an amenable number.

2205621104 is a deficient number, since it is larger than the sum of its proper divisors (2133372016).

2205621104 is a wasteful number, since it uses less digits than its factorization.

2205621104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7857 (or 7851 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2205621104 is about 46964.0405416740. The cubic root of 2205621104 is about 1301.6981956638.

Adding to 2205621104 its reverse (4011265022), we get a palindrome (6216886126).

The spelling of 2205621104 in words is "two billion, two hundred five million, six hundred twenty-one thousand, one hundred four".