12021143321213 has 32 divisors (see below), whose sum is σ = 13239657312000. Its totient is φ = 10847676888576.

The previous prime is 12021143321207. The next prime is 12021143321273. The reversal of 12021143321213 is 31212334112021.

It is a cyclic number.

It is not a de Polignac number, because 12021143321213 - 2¹⁶ = 12021143255677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021143321273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55201898 + ... + 55419236.

It is an arithmetic number, because the mean of its divisors is an integer number (413739291000).

Almost surely, 2^{12021143321213} is an apocalyptic number.

12021143321213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12021143321213 is a deficient number, since it is larger than the sum of its proper divisors (1218513990787).

12021143321213 is a wasteful number, since it uses less digits than its factorization.

12021143321213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217941.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 12021143321213 its reverse (31212334112021), we get a palindrome (43233477433234).

The spelling of 12021143321213 in words is "twelve trillion, twenty-one billion, one hundred forty-three million, three hundred twenty-one thousand, two hundred thirteen".