12200228 has 12 divisors (see below), whose sum is σ = 21401100. Its totient is φ = 6085632.

The previous prime is 12200179. The next prime is 12200239. The reversal of 12200228 is 82200221.

It can be written as a sum of positive squares in 2 ways, for example, as 4032064 + 8168164 = 2008^2 + 2858^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1601 + ... + 5192.

It is an arithmetic number, because the mean of its divisors is an integer number (1783425).

Almost surely, 2^12200228 is an apocalyptic number.

It is an amenable number.

12200228 is a deficient number, since it is larger than the sum of its proper divisors (9200872).

12200228 is a wasteful number, since it uses less digits than its factorization.

12200228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7246 (or 7244 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 12200228 is about 3492.8824772672. The cubic root of 12200228 is about 230.2091858685.

Adding to 12200228 its reverse (82200221), we get a palindrome (94400449).

The spelling of 12200228 in words is "twelve million, two hundred thousand, two hundred twenty-eight".