220221120211 has 2 divisors, whose sum is σ = 220221120212. Its totient is φ = 220221120210.

The previous prime is 220221120209. The next prime is 220221120233. The reversal of 220221120211 is 112021122022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220221120211 - 2¹ = 220221120209 is a prime.

Together with 220221120209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (220221120311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110110560105 + 110110560106.

It is an arithmetic number, because the mean of its divisors is an integer number (110110560106).

Almost surely, 2^220221120211 is an apocalyptic number.

220221120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

220221120211 is an equidigital number, since it uses as much as digits as its factorization.

220221120211 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 16.

Adding to 220221120211 its reverse (112021122022), we get a palindrome (332242242233).

The spelling of 220221120211 in words is "two hundred twenty billion, two hundred twenty-one million, one hundred twenty thousand, two hundred eleven".