12270212 has 6 divisors (see below), whose sum is σ = 21472878. Its totient is φ = 6135104.

The previous prime is 12270197. The next prime is 12270217. The reversal of 12270212 is 21207221.

12270212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10863616 + 1406596 = 3296^2 + 1186^2 .

It is not an unprimeable number, because it can be changed into a prime (12270217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1533773 + ... + 1533780.

It is an arithmetic number, because the mean of its divisors is an integer number (3578813).

Almost surely, 2^12270212 is an apocalyptic number.

It is an amenable number.

12270212 is a deficient number, since it is larger than the sum of its proper divisors (9202666).

12270212 is a wasteful number, since it uses less digits than its factorization.

12270212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067557 (or 3067555 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 12270212 is about 3502.8862385182. The cubic root of 12270212 is about 230.6485287991.

Adding to 12270212 its reverse (21207221), we get a palindrome (33477433).

The spelling of 12270212 in words is "twelve million, two hundred seventy thousand, two hundred twelve".