221232230111 has 2 divisors, whose sum is σ = 221232230112. Its totient is φ = 221232230110.

The previous prime is 221232230029. The next prime is 221232230119. The reversal of 221232230111 is 111032232122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221232230111 - 2¹⁸ = 221231967967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221232230119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110616115055 + 110616115056.

It is an arithmetic number, because the mean of its divisors is an integer number (110616115056).

Almost surely, 2^221232230111 is an apocalyptic number.

221232230111 is a deficient number, since it is larger than the sum of its proper divisors (1).

221232230111 is an equidigital number, since it uses as much as digits as its factorization.

221232230111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 221232230111 its reverse (111032232122), we get a palindrome (332264462233).

The spelling of 221232230111 in words is "two hundred twenty-one billion, two hundred thirty-two million, two hundred thirty thousand, one hundred eleven".