12011202011221 has 8 divisors (see below), whose sum is σ = 13788644463104. Its totient is φ = 10249148671920.

The previous prime is 12011202011219. The next prime is 12011202011257. The reversal of 12011202011221 is 12211020211021.

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 12011202011221 - 2¹ = 12011202011219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12011202011195 and 12011202011204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011202011261) 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, 3847276470 + ... + 3847279591.

It is an arithmetic number, because the mean of its divisors is an integer number (1723580557888).

Almost surely, 2^{12011202011221} is an apocalyptic number.

It is an amenable number.

12011202011221 is a deficient number, since it is larger than the sum of its proper divisors (1777442451883).

12011202011221 is an equidigital number, since it uses as much as digits as its factorization.

12011202011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7694556291.

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

Adding to 12011202011221 its reverse (12211020211021), we get a palindrome (24222222222242).

The spelling of 12011202011221 in words is "twelve trillion, eleven billion, two hundred two million, eleven thousand, two hundred twenty-one".