12211001121100 has 72 divisors (see below), whose sum is σ = 26615591493120. Its totient is φ = 4862711622720.

The previous prime is 12211001121073. The next prime is 12211001121119. The reversal of 12211001121100 is 112110011221.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95703547 + ... + 95831053.

It is an arithmetic number, because the mean of its divisors is an integer number (369660992960).

Almost surely, 2^{12211001121100} is an apocalyptic number.

12211001121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211001121100 is an abundant number, since it is smaller than the sum of its proper divisors (14404590372020).

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

12211001121100 is a wasteful number, since it uses less digits than its factorization.

12211001121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131767 (or 131760 counting only the distinct ones).

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

Adding to 12211001121100 its reverse (112110011221), we get a palindrome (12323111132321).

The spelling of 12211001121100 in words is "twelve trillion, two hundred eleven billion, one million, one hundred twenty-one thousand, one hundred".