12021020121022 has 32 divisors (see below), whose sum is σ = 19678615004160. Its totient is φ = 5461918693920.

The previous prime is 12021020121017. The next prime is 12021020121037. The reversal of 12021020121022 is 22012102012021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12021020120987 and 12021020121005.

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, 953059588 + ... + 953072200.

It is an arithmetic number, because the mean of its divisors is an integer number (614956718880).

Almost surely, 2^{12021020121022} is an apocalyptic number.

12021020121022 is a deficient number, since it is larger than the sum of its proper divisors (7657594883138).

12021020121022 is a wasteful number, since it uses less digits than its factorization.

12021020121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26488.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12021020121022 its reverse (22012102012021), we get a palindrome (34033122133043).

The spelling of 12021020121022 in words is "twelve trillion, twenty-one billion, twenty million, one hundred twenty-one thousand, twenty-two".