12110221211 has 16 divisors (see below), whose sum is σ = 13804121088. Its totient is φ = 10516440000.

The previous prime is 12110221171. The next prime is 12110221229. The reversal of 12110221211 is 11212201121.

It is not a de Polignac number, because 12110221211 - 2³⁰ = 11036479387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12110221261) 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, 158135 + ... + 221871.

It is an arithmetic number, because the mean of its divisors is an integer number (862757568).

Almost surely, 2^12110221211 is an apocalyptic number.

12110221211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12110221211 is a deficient number, since it is larger than the sum of its proper divisors (1693899877).

12110221211 is a wasteful number, since it uses less digits than its factorization.

12110221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64522.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12110221211 its reverse (11212201121), we get a palindrome (23322422332).

The spelling of 12110221211 in words is "twelve billion, one hundred ten million, two hundred twenty-one thousand, two hundred eleven".