12012220322021 has 8 divisors (see below), whose sum is σ = 12724584503040. Its totient is φ = 11300496472768.

The previous prime is 12012220321993. The next prime is 12012220322023. The reversal of 12012220322021 is 12022302221021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12012220322021 - 2³⁸ = 11737342415077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12012220321984 and 12012220322002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012220322023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160044311 + ... + 160119348.

It is an arithmetic number, because the mean of its divisors is an integer number (1590573062880).

Almost surely, 2^{12012220322021} is an apocalyptic number.

It is an amenable number.

12012220322021 is a deficient number, since it is larger than the sum of its proper divisors (712364181019).

12012220322021 is a wasteful number, since it uses less digits than its factorization.

12012220322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320165883.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12012220322021 its reverse (12022302221021), we get a palindrome (24034522543042).

The spelling of 12012220322021 in words is "twelve trillion, twelve billion, two hundred twenty million, three hundred twenty-two thousand, twenty-one".