12021231333320 has 64 divisors (see below), whose sum is σ = 29990374511040. Its totient is φ = 4299695251200.

The previous prime is 12021231333311. The next prime is 12021231333347. The reversal of 12021231333320 is 2333313212021.

It is a self number, because there is not a number n which added to its sum of digits gives 12021231333320.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223915622 + ... + 223969301.

It is an arithmetic number, because the mean of its divisors is an integer number (468599601735).

Almost surely, 2^{12021231333320} is an apocalyptic number.

12021231333320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021231333320 is an abundant number, since it is smaller than the sum of its proper divisors (17969143177720).

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

12021231333320 is a wasteful number, since it uses less digits than its factorization.

12021231333320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447885006 (or 447885002 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 12021231333320 its reverse (2333313212021), we get a palindrome (14354544545341).

The spelling of 12021231333320 in words is "twelve trillion, twenty-one billion, two hundred thirty-one million, three hundred thirty-three thousand, three hundred twenty".