12211111101 has 64 divisors (see below), whose sum is σ = 20153664000. Its totient is φ = 6551129088.

The previous prime is 12211111097. The next prime is 12211111111. The reversal of 12211111101 is 10111111221.

It is not a de Polignac number, because 12211111101 - 2² = 12211111097 is a prime.

It is a super-2 number, since 2×12211111101² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211111111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11422395 + ... + 11423463.

It is an arithmetic number, because the mean of its divisors is an integer number (314901000).

Almost surely, 2^12211111101 is an apocalyptic number.

It is an amenable number.

12211111101 is a deficient number, since it is larger than the sum of its proper divisors (7942552899).

12211111101 is a wasteful number, since it uses less digits than its factorization.

12211111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763 (or 1749 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 12211111101 its reverse (10111111221), we get a palindrome (22322222322).

The spelling of 12211111101 in words is "twelve billion, two hundred eleven million, one hundred eleven thousand, one hundred one".