12101111201211 has 8 divisors (see below), whose sum is σ = 16399320098064. Its totient is φ = 7935154885920.

The previous prime is 12101111201177. The next prime is 12101111201269. The reversal of 12101111201211 is 11210211110121.

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

It is not a de Polignac number, because 12101111201211 - 2⁷ = 12101111201083 is a prime.

It is a super-3 number, since 3×12101111201211³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12101111209211) 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, 33063145176 + ... + 33063145541.

It is an arithmetic number, because the mean of its divisors is an integer number (2049915012258).

Almost surely, 2^{12101111201211} is an apocalyptic number.

12101111201211 is a deficient number, since it is larger than the sum of its proper divisors (4298208896853).

12101111201211 is an equidigital number, since it uses as much as digits as its factorization.

12101111201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66126290781.

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

Adding to 12101111201211 its reverse (11210211110121), we get a palindrome (23311322311332).

The spelling of 12101111201211 in words is "twelve trillion, one hundred one billion, one hundred eleven million, two hundred one thousand, two hundred eleven".