12201211100100 has 144 divisors (see below), whose sum is σ = 39142795075776. Its totient is φ = 2909379648000.

The previous prime is 12201211100087. The next prime is 12201211100137. The reversal of 12201211100100 is 100111210221.

12201211100100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30104739 + ... + 30507338.

It is an arithmetic number, because the mean of its divisors is an integer number (271824965804).

Almost surely, 2^{12201211100100} is an apocalyptic number.

12201211100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201211100100 is an abundant number, since it is smaller than the sum of its proper divisors (26941583975676).

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

12201211100100 is a wasteful number, since it uses less digits than its factorization.

12201211100100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60612166 (or 60612159 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12201211100100 its reverse (100111210221), we get a palindrome (12301322310321).

The spelling of 12201211100100 in words is "twelve trillion, two hundred one billion, two hundred eleven million, one hundred thousand, one hundred".