221022002002111 has 2 divisors, whose sum is σ = 221022002002112. Its totient is φ = 221022002002110.

The previous prime is 221022002002097. The next prime is 221022002002183. The reversal of 221022002002111 is 111200200220122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221022002002111 - 2⁵ = 221022002002079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221022002003111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110511001001055 + 110511001001056.

It is an arithmetic number, because the mean of its divisors is an integer number (110511001001056).

Almost surely, 2^{221022002002111} is an apocalyptic number.

221022002002111 is a deficient number, since it is larger than the sum of its proper divisors (1).

221022002002111 is an equidigital number, since it uses as much as digits as its factorization.

221022002002111 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 221022002002111 its reverse (111200200220122), we get a palindrome (332222202222233).

The spelling of 221022002002111 in words is "two hundred twenty-one trillion, twenty-two billion, two million, two thousand, one hundred eleven".