221241424223 has 2 divisors, whose sum is σ = 221241424224. Its totient is φ = 221241424222.

The previous prime is 221241424219. The next prime is 221241424267. The reversal of 221241424223 is 322424142122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221241424223 - 2² = 221241424219 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221241426223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110620712111 + 110620712112.

It is an arithmetic number, because the mean of its divisors is an integer number (110620712112).

Almost surely, 2^221241424223 is an apocalyptic number.

221241424223 is a deficient number, since it is larger than the sum of its proper divisors (1).

221241424223 is an equidigital number, since it uses as much as digits as its factorization.

221241424223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 29.

Adding to 221241424223 its reverse (322424142122), we get a palindrome (543665566345).

The spelling of 221241424223 in words is "two hundred twenty-one billion, two hundred forty-one million, four hundred twenty-four thousand, two hundred twenty-three".