221110010101223 has 2 divisors, whose sum is σ = 221110010101224. Its totient is φ = 221110010101222.

The previous prime is 221110010101177. The next prime is 221110010101273. The reversal of 221110010101223 is 322101010011122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221110010101223 - 2¹² = 221110010097127 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 (221110010101273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110555005050611 + 110555005050612.

It is an arithmetic number, because the mean of its divisors is an integer number (110555005050612).

Almost surely, 2^{221110010101223} is an apocalyptic number.

221110010101223 is a deficient number, since it is larger than the sum of its proper divisors (1).

221110010101223 is an equidigital number, since it uses as much as digits as its factorization.

221110010101223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 221110010101223 its reverse (322101010011122), we get a palindrome (543211020112345).

The spelling of 221110010101223 in words is "two hundred twenty-one trillion, one hundred ten billion, ten million, one hundred one thousand, two hundred twenty-three".