12011321222101 has 8 divisors (see below), whose sum is σ = 12020177176280. Its totient is φ = 12002467258368.

The previous prime is 12011321222081. The next prime is 12011321222119. The reversal of 12011321222101 is 10122212311021.

It can be written as a sum of positive squares in 4 ways, for example, as 124506651025 + 11886814571076 = 352855^2 + 3447726^2 .

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 12011321222101 - 2⁷ = 12011321221973 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 (12011321222171) 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, 11685565 + ... + 12671821.

It is an arithmetic number, because the mean of its divisors is an integer number (1502522147035).

Almost surely, 2^{12011321222101} is an apocalyptic number.

It is an amenable number.

12011321222101 is a deficient number, since it is larger than the sum of its proper divisors (8855954179).

12011321222101 is an equidigital number, since it uses as much as digits as its factorization.

12011321222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995223.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12011321222101 its reverse (10122212311021), we get a palindrome (22133533533122).

The spelling of 12011321222101 in words is "twelve trillion, eleven billion, three hundred twenty-one million, two hundred twenty-two thousand, one hundred one".