12323202021212 has 36 divisors (see below), whose sum is σ = 22077332950680. Its totient is φ = 6017050778400.

The previous prime is 12323202021209. The next prime is 12323202021217. The reversal of 12323202021212 is 21212020232321.

It is a happy number.

It is a super-2 number, since 2×12323202021212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12323202021217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4235978 + ... + 6526094.

It is an arithmetic number, because the mean of its divisors is an integer number (613259248630).

Almost surely, 2^{12323202021212} is an apocalyptic number.

It is an amenable number.

12323202021212 is a deficient number, since it is larger than the sum of its proper divisors (9754130929468).

12323202021212 is a wasteful number, since it uses less digits than its factorization.

12323202021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290482 (or 2290329 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12323202021212 its reverse (21212020232321), we get a palindrome (33535222253533).

The spelling of 12323202021212 in words is "twelve trillion, three hundred twenty-three billion, two hundred two million, twenty-one thousand, two hundred twelve".