2215520000 has 180 divisors, whose sum is σ = 5641550376. Its totient is φ = 867840000.

The previous prime is 2215519991. The next prime is 2215520017. The reversal of 2215520000 is 255122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9759887 + ... + 9760113.

Almost surely, 2^2215520000 is an apocalyptic number.

2215520000 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 2215520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2820775188).

2215520000 is an abundant number, since it is smaller than the sum of its proper divisors (3426030376).

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

2215520000 is an frugal number, since it uses more digits than its factorization.

2215520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2215520000 is about 47069.3105961836. The cubic root of 2215520000 is about 1303.6426436176.

Adding to 2215520000 its reverse (255122), we get a palindrome (2215775122).

The spelling of 2215520000 in words is "two billion, two hundred fifteen million, five hundred twenty thousand".