221110124223 has 4 divisors (see below), whose sum is σ = 294813498968. Its totient is φ = 147406749480.

The previous prime is 221110124201. The next prime is 221110124239. The reversal of 221110124223 is 322421011122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 221110124223 - 2⁶ = 221110124159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221110124223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221110124273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36851687368 + ... + 36851687373.

It is an arithmetic number, because the mean of its divisors is an integer number (73703374742).

Almost surely, 2^221110124223 is an apocalyptic number.

221110124223 is a deficient number, since it is larger than the sum of its proper divisors (73703374745).

221110124223 is an equidigital number, since it uses as much as digits as its factorization.

221110124223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73703374744.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 221110124223 its reverse (322421011122), we get a palindrome (543531135345).

The spelling of 221110124223 in words is "two hundred twenty-one billion, one hundred ten million, one hundred twenty-four thousand, two hundred twenty-three".