12021002313012 has 144 divisors (see below), whose sum is σ = 37886628229632. Its totient is φ = 3122152223040.

The previous prime is 12021002313011. The next prime is 12021002313107. The reversal of 12021002313012 is 21031320012021.

12021002313012 is a `hidden beast` number, since 120 + 2 + 10 + 0 + 231 + 301 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021002313011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49895023 + ... + 50135369.

It is an arithmetic number, because the mean of its divisors is an integer number (263101584928).

Almost surely, 2^{12021002313012} is an apocalyptic number.

12021002313012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12021002313012 is an abundant number, since it is smaller than the sum of its proper divisors (25865625916620).

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

12021002313012 is a wasteful number, since it uses less digits than its factorization.

12021002313012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258418 (or 258413 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12021002313012 its reverse (21031320012021), we get a palindrome (33052322325033).

The spelling of 12021002313012 in words is "twelve trillion, twenty-one billion, two million, three hundred thirteen thousand, twelve".