212233312 has 12 divisors (see below), whose sum is σ = 417834396. Its totient is φ = 106116640.

The previous prime is 212233309. The next prime is 212233331. The reversal of 212233312 is 213332212.

It is a self number, because there is not a number n which added to its sum of digits gives 212233312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3316114 + ... + 3316177.

It is an arithmetic number, because the mean of its divisors is an integer number (34819533).

Almost surely, 2^212233312 is an apocalyptic number.

It is an amenable number.

212233312 is a deficient number, since it is larger than the sum of its proper divisors (205601084).

212233312 is an equidigital number, since it uses as much as digits as its factorization.

212233312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6632301 (or 6632293 counting only the distinct ones).

The product of its digits is 432, while the sum is 19.

The square root of 212233312 is about 14568.2295423981. The cubic root of 212233312 is about 596.4918540900.

Adding to 212233312 its reverse (213332212), we get a palindrome (425565524).

The spelling of 212233312 in words is "two hundred twelve million, two hundred thirty-three thousand, three hundred twelve".