12021143321212 has 24 divisors (see below), whose sum is σ = 22149460659200. Its totient is φ = 5692875969456.

The previous prime is 12021143321207. The next prime is 12021143321273. The reversal of 12021143321212 is 21212334112021.

It is a congruent number.

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, 18424668 + ... + 19065955.

Almost surely, 2^{12021143321212} is an apocalyptic number.

It is an amenable number.

12021143321212 is a deficient number, since it is larger than the sum of its proper divisors (10128317337988).

12021143321212 is a wasteful number, since it uses less digits than its factorization.

12021143321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37494865 (or 37494863 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 12021143321212 its reverse (21212334112021), we get a palindrome (33233477433233).

The spelling of 12021143321212 in words is "twelve trillion, twenty-one billion, one hundred forty-three million, three hundred twenty-one thousand, two hundred twelve".