2217245000 has 80 divisors (see below), whose sum is σ = 5212753260. Its totient is φ = 883872000.

The previous prime is 2217244993. The next prime is 2217245039. The reversal of 2217245000 is 5427122.

2217245000 = 6773² + 6774² + ... + 6820².

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 479522404 + 1737722596 = 21898^2 + 41686^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1984442 + ... + 1985558.

Almost surely, 2^2217245000 is an apocalyptic number.

2217245000 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 2217245000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2606376630).

2217245000 is an abundant number, since it is smaller than the sum of its proper divisors (2995508260).

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

2217245000 is a wasteful number, since it uses less digits than its factorization.

2217245000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540 (or 1521 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 2217245000 is about 47087.6310722890. The cubic root of 2217245000 is about 1303.9808938072.

The spelling of 2217245000 in words is "two billion, two hundred seventeen million, two hundred forty-five thousand".