12222250 has 16 divisors (see below), whose sum is σ = 22880520. Its totient is φ = 4888800.

The previous prime is 12222241. The next prime is 12222257. The reversal of 12222250 is 5222221.

It can be written as a sum of positive squares in 4 ways, for example, as 4116841 + 8105409 = 2029^2 + 2847^2 .

It is not an unprimeable number, because it can be changed into a prime (12222257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24195 + ... + 24694.

Almost surely, 2^12222250 is an apocalyptic number.

12222250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12222250 is a deficient number, since it is larger than the sum of its proper divisors (10658270).

12222250 is an equidigital number, since it uses as much as digits as its factorization.

12222250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48906 (or 48896 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 12222250 is about 3496.0334666590. The cubic root of 12222250 is about 230.3476155059.

Adding to 12222250 its reverse (5222221), we get a palindrome (17444471).

The spelling of 12222250 in words is "twelve million, two hundred twenty-two thousand, two hundred fifty".