220120211 has 2 divisors, whose sum is σ = 220120212. Its totient is φ = 220120210.

The previous prime is 220120193. The next prime is 220120213. The reversal of 220120211 is 112021022.

It is a happy number.

220120211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220120211 - 2²² = 215925907 is a prime.

Together with 220120213, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 220120192 and 220120201.

It is not a weakly prime, because it can be changed into another prime (220120213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110060105 + 110060106.

It is an arithmetic number, because the mean of its divisors is an integer number (110060106).

Almost surely, 2^220120211 is an apocalyptic number.

220120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

220120211 is an equidigital number, since it uses as much as digits as its factorization.

220120211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 220120211 is about 14836.4487327662. The cubic root of 220120211 is about 603.7910068494.

Adding to 220120211 its reverse (112021022), we get a palindrome (332141233).

The spelling of 220120211 in words is "two hundred twenty million, one hundred twenty thousand, two hundred eleven".