212144312 has 8 divisors (see below), whose sum is σ = 397770600. Its totient is φ = 106072152.

The previous prime is 212144293. The next prime is 212144321. The reversal of 212144312 is 213441212.

212144312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×212144312² = 90010418227906688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13259012 + ... + 13259027.

It is an arithmetic number, because the mean of its divisors is an integer number (49721325).

Almost surely, 2^212144312 is an apocalyptic number.

It is an amenable number.

212144312 is a deficient number, since it is larger than the sum of its proper divisors (185626288).

212144312 is a wasteful number, since it uses less digits than its factorization.

212144312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26518045 (or 26518041 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 212144312 is about 14565.1746299178. The cubic root of 212144312 is about 596.4084628494.

Adding to 212144312 its reverse (213441212), we get a palindrome (425585524).

The spelling of 212144312 in words is "two hundred twelve million, one hundred forty-four thousand, three hundred twelve".