2204355220 has 12 divisors (see below), whose sum is σ = 4629146004. Its totient is φ = 881742080.

The previous prime is 2204355217. The next prime is 2204355233. The reversal of 2204355220 is 225534022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1236647556 + 967707664 = 35166^2 + 31108^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55108861 + ... + 55108900.

It is an arithmetic number, because the mean of its divisors is an integer number (385762167).

Almost surely, 2^2204355220 is an apocalyptic number.

2204355220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2204355220 is an abundant number, since it is smaller than the sum of its proper divisors (2424790784).

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

2204355220 is a wasteful number, since it uses less digits than its factorization.

2204355220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110217770 (or 110217768 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 2204355220 is about 46950.5614449923. The cubic root of 2204355220 is about 1301.4491177873.

Adding to 2204355220 its reverse (225534022), we get a palindrome (2429889242).

The spelling of 2204355220 in words is "two billion, two hundred four million, three hundred fifty-five thousand, two hundred twenty".