222120220111 has 2 divisors, whose sum is σ = 222120220112. Its totient is φ = 222120220110.

The previous prime is 222120220109. The next prime is 222120220159. The reversal of 222120220111 is 111022021222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222120220111 - 2¹ = 222120220109 is a prime.

Together with 222120220109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222120820111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111060110055 + 111060110056.

It is an arithmetic number, because the mean of its divisors is an integer number (111060110056).

Almost surely, 2^222120220111 is an apocalyptic number.

222120220111 is a deficient number, since it is larger than the sum of its proper divisors (1).

222120220111 is an equidigital number, since it uses as much as digits as its factorization.

222120220111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222120220111 its reverse (111022021222), we get a palindrome (333142241333).

The spelling of 222120220111 in words is "two hundred twenty-two billion, one hundred twenty million, two hundred twenty thousand, one hundred eleven".