12201220212102 has 96 divisors (see below), whose sum is σ = 28467823831200. Its totient is φ = 3762642637824.

The previous prime is 12201220212101. The next prime is 12201220212109. The reversal of 12201220212102 is 20121202210221.

It is a happy number.

12201220212102 is a `hidden beast` number, since 1 + 220 + 1 + 220 + 212 + 10 + 2 = 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 (12201220212101) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 315510424 + ... + 315549092.

It is an arithmetic number, because the mean of its divisors is an integer number (296539831575).

Almost surely, 2^{12201220212102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12201220212102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14233911915600).

12201220212102 is an abundant number, since it is smaller than the sum of its proper divisors (16266603619098).

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

12201220212102 is a wasteful number, since it uses less digits than its factorization.

12201220212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56230 (or 56227 counting only the distinct ones).

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

Adding to 12201220212102 its reverse (20121202210221), we get a palindrome (32322422422323).

The spelling of 12201220212102 in words is "twelve trillion, two hundred one billion, two hundred twenty million, two hundred twelve thousand, one hundred two".