212202220211 has 2 divisors, whose sum is σ = 212202220212. Its totient is φ = 212202220210.

The previous prime is 212202220207. The next prime is 212202220213. The reversal of 212202220211 is 112022202212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212202220211 - 2² = 212202220207 is a prime.

Together with 212202220213, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212202220211.

It is not a weakly prime, because it can be changed into another prime (212202220213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106101110105 + 106101110106.

It is an arithmetic number, because the mean of its divisors is an integer number (106101110106).

Almost surely, 2^212202220211 is an apocalyptic number.

212202220211 is a deficient number, since it is larger than the sum of its proper divisors (1).

212202220211 is an equidigital number, since it uses as much as digits as its factorization.

212202220211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212202220211 its reverse (112022202212), we get a palindrome (324224422423).

The spelling of 212202220211 in words is "two hundred twelve billion, two hundred two million, two hundred twenty thousand, two hundred eleven".