12010121111111 has 8 divisors (see below), whose sum is σ = 12043029245184. Its totient is φ = 11977227692800.

The previous prime is 12010121111081. The next prime is 12010121111201. The reversal of 12010121111111 is 11111112101021.

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 12010121111111 - 2¹⁸ = 12010120848967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010121111711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2043431 + ... + 5309976.

It is an arithmetic number, because the mean of its divisors is an integer number (1505378655648).

Almost surely, 2^{12010121111111} is an apocalyptic number.

12010121111111 is a deficient number, since it is larger than the sum of its proper divisors (32908134073).

12010121111111 is an equidigital number, since it uses as much as digits as its factorization.

12010121111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7357881.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 12010121111111 its reverse (11111112101021), we get a palindrome (23121233212132).

The spelling of 12010121111111 in words is "twelve trillion, ten billion, one hundred twenty-one million, one hundred eleven thousand, one hundred eleven".