12102012220122 has 96 divisors (see below), whose sum is σ = 29279522226240. Its totient is φ = 3580823554560.

The previous prime is 12102012220099. The next prime is 12102012220169. The reversal of 12102012220122 is 22102221020121.

It is a happy number.

12102012220122 is a `hidden beast` number, since 121 + 0 + 201 + 2 + 220 + 122 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 12102012220095 and 12102012220104.

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, 26069668 + ... + 26529824.

It is an arithmetic number, because the mean of its divisors is an integer number (304995023190).

Almost surely, 2^{12102012220122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12102012220122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14639761113120).

12102012220122 is an abundant number, since it is smaller than the sum of its proper divisors (17177510006118).

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

12102012220122 is a wasteful number, since it uses less digits than its factorization.

12102012220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463308 (or 463305 counting only the distinct ones).

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

Adding to 12102012220122 its reverse (22102221020121), we get a palindrome (34204233240243).

The spelling of 12102012220122 in words is "twelve trillion, one hundred two billion, twelve million, two hundred twenty thousand, one hundred twenty-two".