12120121011211 has 8 divisors (see below), whose sum is σ = 12200677632000. Its totient is φ = 12039568218600.

The previous prime is 12120121011203. The next prime is 12120121011247. The reversal of 12120121011211 is 11211012102121.

12120121011211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12120121011211 - 2³ = 12120121011203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120121018211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5542230 + ... + 7413268.

It is an arithmetic number, because the mean of its divisors is an integer number (1525084704000).

Almost surely, 2^{12120121011211} is an apocalyptic number.

12120121011211 is a deficient number, since it is larger than the sum of its proper divisors (80556620789).

12120121011211 is a wasteful number, since it uses less digits than its factorization.

12120121011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914089.

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

Adding to 12120121011211 its reverse (11211012102121), we get a palindrome (23331133113332).

The spelling of 12120121011211 in words is "twelve trillion, one hundred twenty billion, one hundred twenty-one million, eleven thousand, two hundred eleven".