12020211 has 16 divisors (see below), whose sum is σ = 20352000. Its totient is φ = 6868584.

The previous prime is 12020209. The next prime is 12020221. The reversal of 12020211 is 11202021.

12020211 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12020211 - 2¹ = 12020209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12020193 and 12020202.

It is not an unprimeable number, because it can be changed into a prime (12020221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31611 + ... + 31988.

It is an arithmetic number, because the mean of its divisors is an integer number (1272000).

Almost surely, 2^12020211 is an apocalyptic number.

12020211 is a deficient number, since it is larger than the sum of its proper divisors (8331789).

12020211 is an equidigital number, since it uses as much as digits as its factorization.

12020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63615 (or 63609 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 12020211 is about 3467.0175944174. The cubic root of 12020211 is about 229.0713087488.

Adding to 12020211 its reverse (11202021), we get a palindrome (23222232).

The spelling of 12020211 in words is "twelve million, twenty thousand, two hundred eleven".