12352211504212 has 24 divisors (see below), whose sum is σ = 21717206827400. Its totient is φ = 6147311273856.

The previous prime is 12352211504203. The next prime is 12352211504219. The reversal of 12352211504212 is 21240511225321.

It can be written as a sum of positive squares in 4 ways, for example, as 6242782085136 + 6109429419076 = 2498556^2 + 2471726^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12352211504219) 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, 1090714 + ... + 5088622.

Almost surely, 2^{12352211504212} is an apocalyptic number.

It is an amenable number.

12352211504212 is a deficient number, since it is larger than the sum of its proper divisors (9364995323188).

12352211504212 is a wasteful number, since it uses less digits than its factorization.

12352211504212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4001515 (or 4001513 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 12352211504212 its reverse (21240511225321), we get a palindrome (33592722729533).

The spelling of 12352211504212 in words is "twelve trillion, three hundred fifty-two billion, two hundred eleven million, five hundred four thousand, two hundred twelve".