12021022122012 has 48 divisors (see below), whose sum is σ = 31175835348000. Its totient is φ = 4005693060480.

The previous prime is 12021022121993. The next prime is 12021022122029. The reversal of 12021022122012 is 21022122012021.

It is a happy number.

12021022122012 is a `hidden beast` number, since 1 + 2 + 0 + 210 + 221 + 220 + 12 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17923539 + ... + 18582122.

It is an arithmetic number, because the mean of its divisors is an integer number (649496569750).

Almost surely, 2^{12021022122012} is an apocalyptic number.

12021022122012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12021022122012 is an abundant number, since it is smaller than the sum of its proper divisors (19154813225988).

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

12021022122012 is a wasteful number, since it uses less digits than its factorization.

12021022122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36508723 (or 36508715 counting only the distinct ones).

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

Adding to 12021022122012 its reverse (21022122012021), we get a palindrome (33043144134033).

The spelling of 12021022122012 in words is "twelve trillion, twenty-one billion, twenty-two million, one hundred twenty-two thousand, twelve".