12223110220221 has 16 divisors (see below), whose sum is σ = 16317204350720. Its totient is φ = 8138881658880.

The previous prime is 12223110220219. The next prime is 12223110220301. The reversal of 12223110220221 is 12202201132221.

It is not a de Polignac number, because 12223110220221 - 2¹ = 12223110220219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223110240221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13457181 + ... + 14336733.

It is an arithmetic number, because the mean of its divisors is an integer number (1019825271920).

Almost surely, 2^{12223110220221} is an apocalyptic number.

It is an amenable number.

12223110220221 is a deficient number, since it is larger than the sum of its proper divisors (4094094130499).

12223110220221 is a wasteful number, since it uses less digits than its factorization.

12223110220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885156.

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

Adding to 12223110220221 its reverse (12202201132221), we get a palindrome (24425311352442).

The spelling of 12223110220221 in words is "twelve trillion, two hundred twenty-three billion, one hundred ten million, two hundred twenty thousand, two hundred twenty-one".