12123302212 has 24 divisors (see below), whose sum is σ = 24278014656. Its totient is φ = 5188970208.

The previous prime is 12123302201. The next prime is 12123302237. The reversal of 12123302212 is 21220332121.

It is a self number, because there is not a number n which added to its sum of digits gives 12123302212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258418 + ... + 301705.

It is an arithmetic number, because the mean of its divisors is an integer number (1011583944).

Almost surely, 2^12123302212 is an apocalyptic number.

It is an amenable number.

12123302212 is an abundant number, since it is smaller than the sum of its proper divisors (12154712444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12123302212 is a wasteful number, since it uses less digits than its factorization.

12123302212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560907 (or 560905 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12123302212 its reverse (21220332121), we get a palindrome (33343634333).

The spelling of 12123302212 in words is "twelve billion, one hundred twenty-three million, three hundred two thousand, two hundred twelve".