2221005250 has 16 divisors (see below), whose sum is σ = 4157722296. Its totient is φ = 888402000.

The previous prime is 2221005221. The next prime is 2221005317. The reversal of 2221005250 is 525001222.

It can be written as a sum of positive squares in 4 ways, for example, as 949440969 + 1271564281 = 30813^2 + 35659^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4441761 + ... + 4442260.

Almost surely, 2^2221005250 is an apocalyptic number.

2221005250 is a deficient number, since it is larger than the sum of its proper divisors (1936717046).

2221005250 is an equidigital number, since it uses as much as digits as its factorization.

2221005250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8884038 (or 8884028 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2221005250 is about 47127.5423717384. The cubic root of 2221005250 is about 1304.7176226327.

Adding to 2221005250 its reverse (525001222), we get a palindrome (2746006472).

The spelling of 2221005250 in words is "two billion, two hundred twenty-one million, five thousand, two hundred fifty".