12212221312223 has 8 divisors (see below), whose sum is σ = 12885649929600. Its totient is φ = 11541860707608.

The previous prime is 12212221312177. The next prime is 12212221312229. The reversal of 12212221312223 is 32221312221221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12212221312223 - 2¹⁸ = 12212221050079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12212221312192 and 12212221312201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212221312229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766995011 + ... + 767010932.

It is an arithmetic number, because the mean of its divisors is an integer number (1610706241200).

Almost surely, 2^{12212221312223} is an apocalyptic number.

12212221312223 is a deficient number, since it is larger than the sum of its proper divisors (673428617377).

12212221312223 is a wasteful number, since it uses less digits than its factorization.

12212221312223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534006381.

The product of its digits is 2304, while the sum is 26.

Adding to 12212221312223 its reverse (32221312221221), we get a palindrome (44433533533444).

The spelling of 12212221312223 in words is "twelve trillion, two hundred twelve billion, two hundred twenty-one million, three hundred twelve thousand, two hundred twenty-three".