12021311510004 has 48 divisors (see below), whose sum is σ = 28071357955200. Its totient is φ = 4004014644096.

The previous prime is 12021311510003. The next prime is 12021311510051. The reversal of 12021311510004 is 40001511312021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021311510003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105544174 + ... + 105658010.

It is an arithmetic number, because the mean of its divisors is an integer number (584819957400).

Almost surely, 2^{12021311510004} is an apocalyptic number.

It is an amenable number.

12021311510004 is an abundant number, since it is smaller than the sum of its proper divisors (16050046445196).

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

12021311510004 is a wasteful number, since it uses less digits than its factorization.

12021311510004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120552 (or 120550 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 12021311510004 its reverse (40001511312021), we get a palindrome (52022822822025).

The spelling of 12021311510004 in words is "twelve trillion, twenty-one billion, three hundred eleven million, five hundred ten thousand, four".