12222122102100 has 216 divisors, whose sum is σ = 38966597124000. Its totient is φ = 3203356481280.

The previous prime is 12222122102087. The next prime is 12222122102107. The reversal of 12222122102100 is 120122122221.

It is a happy number.

12222122102100 is a `hidden beast` number, since 1 + 22 + 221 + 2 + 210 + 210 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222122102107) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 306844986 + ... + 306884814.

Almost surely, 2^{12222122102100} is an apocalyptic number.

12222122102100 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 12222122102100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19483298562000).

12222122102100 is an abundant number, since it is smaller than the sum of its proper divisors (26744475021900).

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

12222122102100 is a wasteful number, since it uses less digits than its factorization.

12222122102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45687 (or 45677 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12222122102100 its reverse (120122122221), we get a palindrome (12342244224321).

The spelling of 12222122102100 in words is "twelve trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred two thousand, one hundred".