2220500000 has 84 divisors (see below), whose sum is σ = 5465672226. Its totient is φ = 888000000.

The previous prime is 2220499991. The next prime is 2220500011. The reversal of 2220500000 is 50222.

It can be written as a sum of positive squares in 7 ways, for example, as 1310150416 + 910349584 = 36196^2 + 30172^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 497780 + ... + 502220.

Almost surely, 2^2220500000 is an apocalyptic number.

2220500000 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 2220500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2732836113).

2220500000 is an abundant number, since it is smaller than the sum of its proper divisors (3245172226).

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

2220500000 is an frugal number, since it uses more digits than its factorization.

2220500000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4481 (or 4448 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 2220500000 is about 47122.1816133337. The cubic root of 2220500000 is about 1304.6186796620.

Adding to 2220500000 its reverse (50222), we get a palindrome (2220550222).

It can be divided in two parts, 2 and 220500000, that multiplied together give a square (441000000 = 21000²).

The spelling of 2220500000 in words is "two billion, two hundred twenty million, five hundred thousand".