12010212022122 has 128 divisors (see below), whose sum is σ = 27850253598720. Its totient is φ = 3832303700160.

The previous prime is 12010212022121. The next prime is 12010212022157. The reversal of 12010212022122 is 22122021201021.

It is a happy number.

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 = 12010212022095 and 12010212022104.

It is not an unprimeable number, because it can be changed into a prime (12010212022121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58505953 + ... + 58710875.

It is an arithmetic number, because the mean of its divisors is an integer number (217580106240).

Almost surely, 2^{12010212022122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12010212022122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13925126799360).

12010212022122 is an abundant number, since it is smaller than the sum of its proper divisors (15840041576598).

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

12010212022122 is a wasteful number, since it uses less digits than its factorization.

12010212022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205345 (or 205339 counting only the distinct ones).

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

Adding to 12010212022122 its reverse (22122021201021), we get a palindrome (34132233223143).

The spelling of 12010212022122 in words is "twelve trillion, ten billion, two hundred twelve million, twenty-two thousand, one hundred twenty-two".