212112201211 has 4 divisors (see below), whose sum is σ = 212533895952. Its totient is φ = 211690506472.

The previous prime is 212112201209. The next prime is 212112201229. The reversal of 212112201211 is 112102211212.

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 212112201211 - 2¹ = 212112201209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212112201271) 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, 210846616 + ... + 210847621.

It is an arithmetic number, because the mean of its divisors is an integer number (53133473988).

Almost surely, 2^212112201211 is an apocalyptic number.

212112201211 is a deficient number, since it is larger than the sum of its proper divisors (421694741).

212112201211 is an equidigital number, since it uses as much as digits as its factorization.

212112201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421694740.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212112201211 its reverse (112102211212), we get a palindrome (324214412423).

The spelling of 212112201211 in words is "two hundred twelve billion, one hundred twelve million, two hundred one thousand, two hundred eleven".