212111120220211 has 2 divisors, whose sum is σ = 212111120220212. Its totient is φ = 212111120220210.

The previous prime is 212111120220203. The next prime is 212111120220359. The reversal of 212111120220211 is 112022021111212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212111120220211 - 2³ = 212111120220203 is a prime.

It is a super-2 number, since 2×212111120220211² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212111120020211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106055560110105 + 106055560110106.

It is an arithmetic number, because the mean of its divisors is an integer number (106055560110106).

Almost surely, 2^{212111120220211} is an apocalyptic number.

212111120220211 is a deficient number, since it is larger than the sum of its proper divisors (1).

212111120220211 is an equidigital number, since it uses as much as digits as its factorization.

212111120220211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212111120220211 its reverse (112022021111212), we get a palindrome (324133141331423).

The spelling of 212111120220211 in words is "two hundred twelve trillion, one hundred eleven billion, one hundred twenty million, two hundred twenty thousand, two hundred eleven".