20202021100056 has 32 divisors (see below), whose sum is σ = 53163213422400. Its totient is φ = 6379585610400.

The previous prime is 20202021100039. The next prime is 20202021100097. The reversal of 20202021100056 is 65000112020202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22151338470 + ... + 22151339381.

It is an arithmetic number, because the mean of its divisors is an integer number (1661350419450).

Almost surely, 2^{20202021100056} is an apocalyptic number.

It is an amenable number.

20202021100056 is an abundant number, since it is smaller than the sum of its proper divisors (32961192322344).

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

20202021100056 is a wasteful number, since it uses less digits than its factorization.

20202021100056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44302677879 (or 44302677875 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 20202021100056 its reverse (65000112020202), we get a palindrome (85202133120258).

The spelling of 20202021100056 in words is "twenty trillion, two hundred two billion, twenty-one million, one hundred thousand, fifty-six".