12101102021100 has 72 divisors (see below), whose sum is σ = 35227322737600. Its totient is φ = 3207163222080.

The previous prime is 12101102021093. The next prime is 12101102021117. The reversal of 12101102021100 is 112020110121.

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

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, 123684250 + ... + 123782049.

Almost surely, 2^{12101102021100} is an apocalyptic number.

12101102021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101102021100 is an abundant number, since it is smaller than the sum of its proper divisors (23126220716500).

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

12101102021100 is a wasteful number, since it uses less digits than its factorization.

12101102021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247466479 (or 247466472 counting only the distinct ones).

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

Adding to 12101102021100 its reverse (112020110121), we get a palindrome (12213122131221).

The spelling of 12101102021100 in words is "twelve trillion, one hundred one billion, one hundred two million, twenty-one thousand, one hundred".