13212105223 has 8 divisors (see below), whose sum is σ = 13653223056. Its totient is φ = 12777072000.

The previous prime is 13212105217. The next prime is 13212105227. The reversal of 13212105223 is 32250121231.

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

It is a cyclic number.

It is not a de Polignac number, because 13212105223 - 2⁵ = 13212105191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13212105194 and 13212105203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212105227) 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, 1516738 + ... + 1525423.

It is an arithmetic number, because the mean of its divisors is an integer number (1706652882).

Almost surely, 2^13212105223 is an apocalyptic number.

13212105223 is a deficient number, since it is larger than the sum of its proper divisors (441117833).

13212105223 is a wasteful number, since it uses less digits than its factorization.

13212105223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3042305.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 13212105223 its reverse (32250121231), we get a palindrome (45462226454).

The spelling of 13212105223 in words is "thirteen billion, two hundred twelve million, one hundred five thousand, two hundred twenty-three".