12340112212 has 6 divisors (see below), whose sum is σ = 21595196378. Its totient is φ = 6170056104.

The previous prime is 12340112189. The next prime is 12340112261. The reversal of 12340112212 is 21221104321.

It can be written as a sum of positive squares in only one way, i.e., 8739632196 + 3600480016 = 93486^2 + 60004^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12340112212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1542514023 + ... + 1542514030.

Almost surely, 2^12340112212 is an apocalyptic number.

It is an amenable number.

12340112212 is a deficient number, since it is larger than the sum of its proper divisors (9255084166).

12340112212 is a wasteful number, since it uses less digits than its factorization.

12340112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085028057 (or 3085028055 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12340112212 its reverse (21221104321), we get a palindrome (33561216533).

The spelling of 12340112212 in words is "twelve billion, three hundred forty million, one hundred twelve thousand, two hundred twelve".