10212102120020 has 96 divisors (see below), whose sum is σ = 21762079073280. Its totient is φ = 4024803507200.

The previous prime is 10212102120001. The next prime is 10212102120041. The reversal of 10212102120020 is 2002120121201.

It is a junction number, because it is equal to n+sod(n) for n = 10212102119977 and 10212102120004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1004233496 + ... + 1004243664.

It is an arithmetic number, because the mean of its divisors is an integer number (226688323680).

Almost surely, 2^{10212102120020} is an apocalyptic number.

10212102120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212102120020 is an abundant number, since it is smaller than the sum of its proper divisors (11549976953260).

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

10212102120020 is a wasteful number, since it uses less digits than its factorization.

10212102120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11825 (or 11823 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10212102120020 its reverse (2002120121201), we get a palindrome (12214222241221).

The spelling of 10212102120020 in words is "ten trillion, two hundred twelve billion, one hundred two million, one hundred twenty thousand, twenty".