12020110211221 has 8 divisors (see below), whose sum is σ = 13790721222720. Its totient is φ = 10262862302208.

The previous prime is 12020110211201. The next prime is 12020110211233. The reversal of 12020110211221 is 12211201102021.

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 12020110211221 - 2¹⁹ = 12020109686933 is a prime.

It is a super-3 number, since 3×12020110211221³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020110211195 and 12020110211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020110211201) 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 7 ways as a sum of consecutive naturals, for example, 3340773691 + ... + 3340777288.

It is an arithmetic number, because the mean of its divisors is an integer number (1723840152840).

Almost surely, 2^{12020110211221} is an apocalyptic number.

It is an amenable number.

12020110211221 is a deficient number, since it is larger than the sum of its proper divisors (1770611011499).

12020110211221 is an equidigital number, since it uses as much as digits as its factorization.

12020110211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6681551243.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12020110211221 its reverse (12211201102021), we get a palindrome (24231311313242).

The spelling of 12020110211221 in words is "twelve trillion, twenty billion, one hundred ten million, two hundred eleven thousand, two hundred twenty-one".