212310211 has 4 divisors (see below), whose sum is σ = 212444424. Its totient is φ = 212176000.

The previous prime is 212310187. The next prime is 212310223. The reversal of 212310211 is 112013212.

212310211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212310211 - 2⁵ = 212310179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212310191 and 212310200.

It is not an unprimeable number, because it can be changed into a prime (212310811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64705 + ... + 67906.

It is an arithmetic number, because the mean of its divisors is an integer number (53111106).

Almost surely, 2^212310211 is an apocalyptic number.

212310211 is a deficient number, since it is larger than the sum of its proper divisors (134213).

212310211 is a wasteful number, since it uses less digits than its factorization.

212310211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134212.

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

The square root of 212310211 is about 14570.8685739732. The cubic root of 212310211 is about 596.5638881606.

Adding to 212310211 its reverse (112013212), we get a palindrome (324323423).

It can be divided in two parts, 212310 and 211, that added together give a square (212521 = 461²).

The spelling of 212310211 in words is "two hundred twelve million, three hundred ten thousand, two hundred eleven".