2221325000 has 48 divisors (see below), whose sum is σ = 5205955860. Its totient is φ = 888520000.

The previous prime is 2221324999. The next prime is 2221325021. The reversal of 2221325000 is 5231222.

It can be written as a sum of positive squares in 6 ways, for example, as 465124 + 2220859876 = 682^2 + 47126^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2221325000.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19427 + ... + 69426.

Almost surely, 2^2221325000 is an apocalyptic number.

2221325000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221325000 is an abundant number, since it is smaller than the sum of its proper divisors (2984630860).

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

2221325000 is an frugal number, since it uses more digits than its factorization.

2221325000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88884 (or 88860 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2221325000 is about 47130.9346395762. The cubic root of 2221325000 is about 1304.7802314358.

Adding to 2221325000 its reverse (5231222), we get a palindrome (2226556222).

The spelling of 2221325000 in words is "two billion, two hundred twenty-one million, three hundred twenty-five thousand".