12211202222312 has 32 divisors (see below), whose sum is σ = 23028959546280. Its totient is φ = 6070148209920.

The previous prime is 12211202222311. The next prime is 12211202222321. The reversal of 12211202222312 is 21322220211221.

12211202222312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11989280202916 + 221922019396 = 3462554^2 + 471086^2 .

It is a super-2 number, since 2×12211202222312² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12211202222311) 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, 65692862 + ... + 65878482.

Almost surely, 2^{12211202222312} is an apocalyptic number.

It is an amenable number.

12211202222312 is a deficient number, since it is larger than the sum of its proper divisors (10817757323968).

12211202222312 is a wasteful number, since it uses less digits than its factorization.

12211202222312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233333 (or 233329 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 12211202222312 its reverse (21322220211221), we get a palindrome (33533422433533).

The spelling of 12211202222312 in words is "twelve trillion, two hundred eleven billion, two hundred two million, two hundred twenty-two thousand, three hundred twelve".