12010121211101 has 16 divisors (see below), whose sum is σ = 12997275585840. Its totient is φ = 11032066598400.

The previous prime is 12010121211071. The next prime is 12010121211157. The reversal of 12010121211101 is 10111212101021.

It can be written as a sum of positive squares in 8 ways, for example, as 1291634523001 + 10718486688100 = 1136501^2 + 3273910^2 .

It is a cyclic number.

It is not a de Polignac number, because 12010121211101 - 2¹⁸ = 12010120948957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010121211601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3867551 + ... + 6243251.

It is an arithmetic number, because the mean of its divisors is an integer number (812329724115).

Almost surely, 2^{12010121211101} is an apocalyptic number.

It is an amenable number.

12010121211101 is a deficient number, since it is larger than the sum of its proper divisors (987154374739).

12010121211101 is a wasteful number, since it uses less digits than its factorization.

12010121211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377616.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12010121211101 its reverse (10111212101021), we get a palindrome (22121333312122).

The spelling of 12010121211101 in words is "twelve trillion, ten billion, one hundred twenty-one million, two hundred eleven thousand, one hundred one".