12021010201312 has 144 divisors (see below), whose sum is σ = 29343202172928. Its totient is φ = 4745643448320.

The previous prime is 12021010201301. The next prime is 12021010201423. The reversal of 12021010201312 is 21310201012021.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1067137 + ... + 5018047.

It is an arithmetic number, because the mean of its divisors is an integer number (203772237312).

Almost surely, 2^{12021010201312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12021010201312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14671601086464).

12021010201312 is an abundant number, since it is smaller than the sum of its proper divisors (17322191971616).

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

12021010201312 is a wasteful number, since it uses less digits than its factorization.

12021010201312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951009 (or 3950984 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12021010201312 its reverse (21310201012021), we get a palindrome (33331211213333).

The spelling of 12021010201312 in words is "twelve trillion, twenty-one billion, ten million, two hundred one thousand, three hundred twelve".