12021210202120 has 32 divisors (see below), whose sum is σ = 30911683377600. Its totient is φ = 4121557783488.

The previous prime is 12021210202069. The next prime is 12021210202139. The reversal of 12021210202120 is 2120201212021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12021210202094 and 12021210202103.

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 7 ways as a sum of consecutive naturals, for example, 21466446510 + ... + 21466447069.

It is an arithmetic number, because the mean of its divisors is an integer number (965990105550).

Almost surely, 2^{12021210202120} is an apocalyptic number.

12021210202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021210202120 is an abundant number, since it is smaller than the sum of its proper divisors (18890473175480).

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

12021210202120 is a wasteful number, since it uses less digits than its factorization.

12021210202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42932893597 (or 42932893593 counting only the distinct ones).

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

Adding to 12021210202120 its reverse (2120201212021), we get a palindrome (14141411414141).

The spelling of 12021210202120 in words is "twelve trillion, twenty-one billion, two hundred ten million, two hundred two thousand, one hundred twenty".