12121011111201 has 8 divisors (see below), whose sum is σ = 16161375684384. Its totient is φ = 8080660306080.

The previous prime is 12121011111173. The next prime is 12121011111271. The reversal of 12121011111201 is 10211111012121.

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

It is not a de Polignac number, because 12121011111201 - 2⁶ = 12121011111137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12121011111271) 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, 1174396 + ... + 5061741.

It is an arithmetic number, because the mean of its divisors is an integer number (2020171960548).

Almost surely, 2^{12121011111201} is an apocalyptic number.

It is an amenable number.

12121011111201 is a deficient number, since it is larger than the sum of its proper divisors (4040364573183).

12121011111201 is an equidigital number, since it uses as much as digits as its factorization.

12121011111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6884031.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 12121011111201 its reverse (10211111012121), we get a palindrome (22332122123322).

The spelling of 12121011111201 in words is "twelve trillion, one hundred twenty-one billion, eleven million, one hundred eleven thousand, two hundred one".