12662212 has 24 divisors (see below), whose sum is σ = 24275160. Its totient is φ = 5752320.

The previous prime is 12662201. The next prime is 12662233. The reversal of 12662212 is 21226621.

It can be written as a sum of positive squares in 4 ways, for example, as 2268036 + 10394176 = 1506^2 + 3224^2 .

It is a super-2 number, since 2×12662212² = 320663225465888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1239 + ... + 5182.

It is an arithmetic number, because the mean of its divisors is an integer number (1011465).

Almost surely, 2^12662212 is an apocalyptic number.

It is an amenable number.

12662212 is a deficient number, since it is larger than the sum of its proper divisors (11612948).

12662212 is a wasteful number, since it uses less digits than its factorization.

12662212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6471 (or 6469 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 12662212 is about 3558.4002023381. The cubic root of 12662212 is about 233.0790254271.

Adding to 12662212 its reverse (21226621), we get a palindrome (33888833).

The spelling of 12662212 in words is "twelve million, six hundred sixty-two thousand, two hundred twelve".