212020211 has 8 divisors (see below), whose sum is σ = 228738720. Its totient is φ = 195360192.

The previous prime is 212020181. The next prime is 212020213. The reversal of 212020211 is 112020212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212020211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212020192 and 212020201.

It is not an unprimeable number, because it can be changed into a prime (212020213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6935 + ... + 21728.

It is an arithmetic number, because the mean of its divisors is an integer number (28592340).

Almost surely, 2^212020211 is an apocalyptic number.

212020211 is a deficient number, since it is larger than the sum of its proper divisors (16718509).

212020211 is a wasteful number, since it uses less digits than its factorization.

212020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29245.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 212020211 is about 14560.9138106096. The cubic root of 212020211 is about 596.2921437219.

Adding to 212020211 its reverse (112020212), we get a palindrome (324040423).

Subtracting from 212020211 its reverse (112020212), we obtain a palindrome (99999999).

The spelling of 212020211 in words is "two hundred twelve million, twenty thousand, two hundred eleven".