13212105224 has 16 divisors (see below), whose sum is σ = 24774266220. Its totient is φ = 6605634240.

The previous prime is 13212105217. The next prime is 13212105227. The reversal of 13212105224 is 42250121231.

It can be written as a sum of positive squares in 2 ways, for example, as 13014702724 + 197402500 = 114082^2 + 14050^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13212105224.

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 3 ways as a sum of consecutive naturals, for example, 112442 + ... + 197654.

Almost surely, 2^13212105224 is an apocalyptic number.

It is an amenable number.

13212105224 is a deficient number, since it is larger than the sum of its proper divisors (11562160996).

13212105224 is a wasteful number, since it uses less digits than its factorization.

13212105224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104600 (or 104596 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 13212105224 its reverse (42250121231), we get a palindrome (55462226455).

The spelling of 13212105224 in words is "thirteen billion, two hundred twelve million, one hundred five thousand, two hundred twenty-four".