221101212313223 has 16 divisors (see below), whose sum is σ = 242868869074944. Its totient is φ = 199613694536160.

The previous prime is 221101212313159. The next prime is 221101212313229. The reversal of 221101212313223 is 322313212101122.

It is a cyclic number.

It is not a de Polignac number, because 221101212313223 - 2⁶ = 221101212313159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221101212313192 and 221101212313201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221101212313229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53366540 + ... + 57360177.

It is an arithmetic number, because the mean of its divisors is an integer number (15179304317184).

Almost surely, 2^{221101212313223} is an apocalyptic number.

221101212313223 is a deficient number, since it is larger than the sum of its proper divisors (21767656761721).

221101212313223 is a wasteful number, since it uses less digits than its factorization.

221101212313223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110727982.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 221101212313223 its reverse (322313212101122), we get a palindrome (543414424414345).

The spelling of 221101212313223 in words is "two hundred twenty-one trillion, one hundred one billion, two hundred twelve million, three hundred thirteen thousand, two hundred twenty-three".