12120121230011 has 8 divisors (see below), whose sum is σ = 13169571456000. Its totient is φ = 11111825914920.

The previous prime is 12120121230001. The next prime is 12120121230043. The reversal of 12120121230011 is 11003212102121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12120121230011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120121230001) 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, 10288727111 + ... + 10288728288.

It is an arithmetic number, because the mean of its divisors is an integer number (1646196432000).

Almost surely, 2^{12120121230011} is an apocalyptic number.

12120121230011 is a deficient number, since it is larger than the sum of its proper divisors (1049450225989).

12120121230011 is a wasteful number, since it uses less digits than its factorization.

12120121230011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20577455449.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12120121230011 its reverse (11003212102121), we get a palindrome (23123333332132).

The spelling of 12120121230011 in words is "twelve trillion, one hundred twenty billion, one hundred twenty-one million, two hundred thirty thousand, eleven".