12211001211100 has 36 divisors (see below), whose sum is σ = 26498029953304. Its totient is φ = 4884371484480.

The previous prime is 12211001211061. The next prime is 12211001211127. The reversal of 12211001211100 is 111210011221.

It is a happy number.

12211001211100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26378842 + ... + 26837758.

Almost surely, 2^{12211001211100} is an apocalyptic number.

12211001211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211001211100 is an abundant number, since it is smaller than the sum of its proper divisors (14287028742204).

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

12211001211100 is a wasteful number, since it uses less digits than its factorization.

12211001211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725014 (or 725007 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12211001211100 its reverse (111210011221), we get a palindrome (12322211222321).

The spelling of 12211001211100 in words is "twelve trillion, two hundred eleven billion, one million, two hundred eleven thousand, one hundred".