12021120221211 has 24 divisors (see below), whose sum is σ = 17772578503680. Its totient is φ = 7825535138736.

The previous prime is 12021120221207. The next prime is 12021120221251. The reversal of 12021120221211 is 11212202112021.

12021120221211 is a `hidden beast` number, since 1 + 2 + 0 + 211 + 20 + 221 + 211 = 666.

12021120221211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12021120221211 - 2² = 12021120221207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12021120221251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2909931 + ... + 5701748.

It is an arithmetic number, because the mean of its divisors is an integer number (740524104320).

Almost surely, 2^{12021120221211} is an apocalyptic number.

12021120221211 is a deficient number, since it is larger than the sum of its proper divisors (5751458282469).

12021120221211 is a wasteful number, since it uses less digits than its factorization.

12021120221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8615335 (or 8615332 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12021120221211 its reverse (11212202112021), we get a palindrome (23233322333232).

The spelling of 12021120221211 in words is "twelve trillion, twenty-one billion, one hundred twenty million, two hundred twenty-one thousand, two hundred eleven".