212110312 has 8 divisors (see below), whose sum is σ = 397706850. Its totient is φ = 106055152.

The previous prime is 212110303. The next prime is 212110331. The reversal of 212110312 is 213011212.

It can be written as a sum of positive squares in only one way, i.e., 148206276 + 63904036 = 12174^2 + 7994^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 212110292 and 212110301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13256887 + ... + 13256902.

Almost surely, 2^212110312 is an apocalyptic number.

It is an amenable number.

212110312 is a deficient number, since it is larger than the sum of its proper divisors (185596538).

212110312 is a wasteful number, since it uses less digits than its factorization.

212110312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26513795 (or 26513791 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 212110312 is about 14564.0074155433. The cubic root of 212110312 is about 596.3765993647.

Adding to 212110312 its reverse (213011212), we get a palindrome (425121524).

The spelling of 212110312 in words is "two hundred twelve million, one hundred ten thousand, three hundred twelve".