12012020220111 has 8 divisors (see below), whose sum is σ = 16016111735040. Its totient is φ = 8007971092632.

The previous prime is 12012020220047. The next prime is 12012020220163. The reversal of 12012020220111 is 11102202021021.

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

It is not a de Polignac number, because 12012020220111 - 2⁶ = 12012020220047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012020220511) 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, 9929625 + ... + 11073458.

It is an arithmetic number, because the mean of its divisors is an integer number (2002013966880).

Almost surely, 2^{12012020220111} is an apocalyptic number.

12012020220111 is a deficient number, since it is larger than the sum of its proper divisors (4004091514929).

12012020220111 is a wasteful number, since it uses less digits than its factorization.

12012020220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21193725.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12012020220111 its reverse (11102202021021), we get a palindrome (23114222241132).

The spelling of 12012020220111 in words is "twelve trillion, twelve billion, twenty million, two hundred twenty thousand, one hundred eleven".