12221101223 has 4 divisors (see below), whose sum is σ = 12265221000. Its totient is φ = 12176981448.

The previous prime is 12221101183. The next prime is 12221101229. The reversal of 12221101223 is 32210112221.

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

It is a cyclic number.

It is not a de Polignac number, because 12221101223 - 2⁶ = 12221101159 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 (12221101229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22059473 + ... + 22060026.

It is an arithmetic number, because the mean of its divisors is an integer number (3066305250).

Almost surely, 2^12221101223 is an apocalyptic number.

12221101223 is a deficient number, since it is larger than the sum of its proper divisors (44119777).

12221101223 is an equidigital number, since it uses as much as digits as its factorization.

12221101223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44119776.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12221101223 its reverse (32210112221), we get a palindrome (44431213444).

The spelling of 12221101223 in words is "twelve billion, two hundred twenty-one million, one hundred one thousand, two hundred twenty-three".