12220850 has 24 divisors (see below), whose sum is σ = 22850100. Its totient is φ = 4862720.

The previous prime is 12220849. The next prime is 12220853. The reversal of 12220850 is 5802221.

It can be written as a sum of positive squares in 6 ways, for example, as 5340721 + 6880129 = 2311^2 + 2623^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12220853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11126 + ... + 12174.

Almost surely, 2^12220850 is an apocalyptic number.

12220850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12220850 is a deficient number, since it is larger than the sum of its proper divisors (10629250).

12220850 is a wasteful number, since it uses less digits than its factorization.

12220850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294 (or 1289 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 12220850 is about 3495.8332340087. The cubic root of 12220850 is about 230.3388200993.

The spelling of 12220850 in words is "twelve million, two hundred twenty thousand, eight hundred fifty".