12211020211100 has 72 divisors (see below), whose sum is σ = 26773274734080. Its totient is φ = 4833658552320.

The previous prime is 12211020211099. The next prime is 12211020211123. The reversal of 12211020211100 is 111202011221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137763596 + ... + 137852204.

Almost surely, 2^{12211020211100} is an apocalyptic number.

12211020211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12211020211100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13386637367040).

12211020211100 is an abundant number, since it is smaller than the sum of its proper divisors (14562254522980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211020211100 is a wasteful number, since it uses less digits than its factorization.

12211020211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102927 (or 102920 counting only the distinct ones).

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

Adding to 12211020211100 its reverse (111202011221), we get a palindrome (12322222222321).

The spelling of 12211020211100 in words is "twelve trillion, two hundred eleven billion, twenty million, two hundred eleven thousand, one hundred".