212213212 has 12 divisors (see below), whose sum is σ = 380431296. Its totient is φ = 103518560.

The previous prime is 212213189. The next prime is 212213231. The reversal of 212213212 is 212312212.

It is a happy number.

It is a congruent number.

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, 646828 + ... + 647155.

It is an arithmetic number, because the mean of its divisors is an integer number (31702608).

Almost surely, 2^212213212 is an apocalyptic number.

It is an amenable number.

212213212 is a deficient number, since it is larger than the sum of its proper divisors (168218084).

212213212 is a wasteful number, since it uses less digits than its factorization.

212213212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294028 (or 1294026 counting only the distinct ones).

The product of its digits is 96, while the sum is 16.

The square root of 212213212 is about 14567.5396687292. The cubic root of 212213212 is about 596.4730228256.

Adding to 212213212 its reverse (212312212), we get a palindrome (424525424).

The spelling of 212213212 in words is "two hundred twelve million, two hundred thirteen thousand, two hundred twelve".