211310212 has 6 divisors (see below), whose sum is σ = 369792878. Its totient is φ = 105655104.

The previous prime is 211310207. The next prime is 211310233. The reversal of 211310212 is 212013112.

It can be written as a sum of positive squares in only one way, i.e., 185340996 + 25969216 = 13614^2 + 5096^2 .

It is a junction number, because it is equal to n+sod(n) for n = 211310192 and 211310201.

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, 26413773 + ... + 26413780.

Almost surely, 2^211310212 is an apocalyptic number.

It is an amenable number.

211310212 is a deficient number, since it is larger than the sum of its proper divisors (158482666).

211310212 is a wasteful number, since it uses less digits than its factorization.

211310212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52827557 (or 52827555 counting only the distinct ones).

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

The square root of 211310212 is about 14536.5130619416. The cubic root of 211310212 is about 595.6257917018.

Adding to 211310212 its reverse (212013112), we get a palindrome (423323324).

The spelling of 211310212 in words is "two hundred eleven million, three hundred ten thousand, two hundred twelve".