12021022112022 has 288 divisors, whose sum is σ = 36165769405920. Its totient is φ = 2938674816000.

The previous prime is 12021022111997. The next prime is 12021022112051. The reversal of 12021022112022 is 22021122012021.

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 = 12021022111986 and 12021022112004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4338522 + ... + 6547122.

It is an arithmetic number, because the mean of its divisors is an integer number (125575588215).

Almost surely, 2^{12021022112022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12021022112022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18082884702960).

12021022112022 is an abundant number, since it is smaller than the sum of its proper divisors (24144747293898).

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

12021022112022 is a wasteful number, since it uses less digits than its factorization.

12021022112022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208665 (or 2208641 counting only the distinct ones).

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

Adding to 12021022112022 its reverse (22021122012021), we get a palindrome (34042144124043).

The spelling of 12021022112022 in words is "twelve trillion, twenty-one billion, twenty-two million, one hundred twelve thousand, twenty-two".