212023316 has 6 divisors (see below), whose sum is σ = 371040810. Its totient is φ = 106011656.

The previous prime is 212023313. The next prime is 212023327. The reversal of 212023316 is 613320212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 199092100 + 12931216 = 14110^2 + 3596^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212023313) by changing a digit.

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, 26502911 + ... + 26502918.

It is an arithmetic number, because the mean of its divisors is an integer number (61840135).

Almost surely, 2^212023316 is an apocalyptic number.

It is an amenable number.

212023316 is a deficient number, since it is larger than the sum of its proper divisors (159017494).

212023316 is a wasteful number, since it uses less digits than its factorization.

212023316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53005833 (or 53005831 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 212023316 is about 14561.0204312747. The cubic root of 212023316 is about 596.2950545734.

Adding to 212023316 its reverse (613320212), we get a palindrome (825343528).

The spelling of 212023316 in words is "two hundred twelve million, twenty-three thousand, three hundred sixteen".