212020020211 has 4 divisors (see below), whose sum is σ = 212060963800. Its totient is φ = 211979076624.

The previous prime is 212020020169. The next prime is 212020020217. The reversal of 212020020211 is 112020020212.

It is a happy number.

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 212020020211 - 2²³ = 212011631603 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212020020191 and 212020020200.

It is not an unprimeable number, because it can be changed into a prime (212020020217) 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, 20464026 + ... + 20474383.

It is an arithmetic number, because the mean of its divisors is an integer number (53015240950).

Almost surely, 2^212020020211 is an apocalyptic number.

212020020211 is a deficient number, since it is larger than the sum of its proper divisors (40943589).

212020020211 is an equidigital number, since it uses as much as digits as its factorization.

212020020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40943588.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 212020020211 its reverse (112020020212), we get a palindrome (324040040423).

Subtracting from 212020020211 its reverse (112020020212), we obtain a palindrome (99999999999).

The spelling of 212020020211 in words is "two hundred twelve billion, twenty million, twenty thousand, two hundred eleven".