2205220220 has 96 divisors (see below), whose sum is σ = 5593190400. Its totient is φ = 713965824.

The previous prime is 2205220201. The next prime is 2205220261. The reversal of 2205220220 is 220225022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250046 + ... + 258714.

It is an arithmetic number, because the mean of its divisors is an integer number (58262400).

Almost surely, 2^2205220220 is an apocalyptic number.

2205220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2205220220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2796595200).

2205220220 is an abundant number, since it is smaller than the sum of its proper divisors (3387970180).

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

2205220220 is a wasteful number, since it uses less digits than its factorization.

2205220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8787 (or 8785 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2205220220 is about 46959.7723589031. The cubic root of 2205220220 is about 1301.6193272373.

Adding to 2205220220 its reverse (220225022), we get a palindrome (2425445242).

The spelling of 2205220220 in words is "two billion, two hundred five million, two hundred twenty thousand, two hundred twenty".