12211111213101 has 20 divisors (see below), whose sum is σ = 18327741225024. Its totient is φ = 8102159087400.

The previous prime is 12211111213069. The next prime is 12211111213127. The reversal of 12211111213101 is 10131211111221.

12211111213101 is a `hidden beast` number, since 1 + 221 + 1 + 11 + 121 + 310 + 1 = 666.

It is not a de Polignac number, because 12211111213101 - 2⁵ = 12211111213069 is a prime.

It is a super-2 number, since 2×12211111213101² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211111213801) 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 19 ways as a sum of consecutive naturals, for example, 357220965 + ... + 357255146.

Almost surely, 2^{12211111213101} is an apocalyptic number.

It is an amenable number.

12211111213101 is a deficient number, since it is larger than the sum of its proper divisors (6116630011923).

12211111213101 is an equidigital number, since it uses as much as digits as its factorization.

12211111213101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714476334 (or 714476325 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 18.

Adding to 12211111213101 its reverse (10131211111221), we get a palindrome (22342322324322).

The spelling of 12211111213101 in words is "twelve trillion, two hundred eleven billion, one hundred eleven million, two hundred thirteen thousand, one hundred one".