12021223310312 has 32 divisors (see below), whose sum is σ = 22848586444800. Its totient is φ = 5928814067904.

The previous prime is 12021223310227. The next prime is 12021223310351. The reversal of 12021223310312 is 21301332212021.

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, 34020512 + ... + 34372047.

It is an arithmetic number, because the mean of its divisors is an integer number (714018326400).

Almost surely, 2^{12021223310312} is an apocalyptic number.

It is an amenable number.

12021223310312 is a deficient number, since it is larger than the sum of its proper divisors (10827363134488).

12021223310312 is a wasteful number, since it uses less digits than its factorization.

12021223310312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68392865 (or 68392861 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12021223310312 its reverse (21301332212021), we get a palindrome (33322555522333).

The spelling of 12021223310312 in words is "twelve trillion, twenty-one billion, two hundred twenty-three million, three hundred ten thousand, three hundred twelve".