12132212 has 6 divisors (see below), whose sum is σ = 21231378. Its totient is φ = 6066104.

The previous prime is 12132151. The next prime is 12132217. The reversal of 12132212 is 21223121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10995856 + 1136356 = 3316^2 + 1066^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1516523 + ... + 1516530.

It is an arithmetic number, because the mean of its divisors is an integer number (3538563).

Almost surely, 2^12132212 is an apocalyptic number.

It is an amenable number.

12132212 is a deficient number, since it is larger than the sum of its proper divisors (9099166).

12132212 is a wasteful number, since it uses less digits than its factorization.

12132212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3033057 (or 3033055 counting only the distinct ones).

The product of its digits is 48, while the sum is 14.

The square root of 12132212 is about 3483.1324981976. The cubic root of 12132212 is about 229.7805846997.

Adding to 12132212 its reverse (21223121), we get a palindrome (33355333).

Subtracting 12132212 from its reverse (21223121), we obtain a palindrome (9090909).

The spelling of 12132212 in words is "twelve million, one hundred thirty-two thousand, two hundred twelve".