12102221000100 has 288 divisors, whose sum is σ = 43663841335296. Its totient is φ = 2514296217600.

The previous prime is 12102221000081. The next prime is 12102221000117. The reversal of 12102221000100 is 100012220121.

It is a super-2 number, since 2×12102221000100² (a number of 27 digits) contains 22 as substring.

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 95 ways as a sum of consecutive naturals, for example, 137470297 + ... + 137558303.

It is an arithmetic number, because the mean of its divisors is an integer number (151610560192).

Almost surely, 2^{12102221000100} is an apocalyptic number.

12102221000100 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 12102221000100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21831920667648).

12102221000100 is an abundant number, since it is smaller than the sum of its proper divisors (31561620335196).

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

12102221000100 is a wasteful number, since it uses less digits than its factorization.

12102221000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93995 (or 93988 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12102221000100 its reverse (100012220121), we get a palindrome (12202233220221).

The spelling of 12102221000100 in words is "twelve trillion, one hundred two billion, two hundred twenty-one million, one hundred", and thus it is an aban number.