10212021010020 has 48 divisors (see below), whose sum is σ = 28593826184448. Its totient is φ = 2723189664000.

The previous prime is 10212021010003. The next prime is 10212021010021. The reversal of 10212021010020 is 2001012021201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10212021009978 and 10212021010005.

It is not an unprimeable number, because it can be changed into a prime (10212021010021) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12751477 + ... + 13528643.

It is an arithmetic number, because the mean of its divisors is an integer number (595704712176).

Almost surely, 2^{10212021010020} is an apocalyptic number.

10212021010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212021010020 is an abundant number, since it is smaller than the sum of its proper divisors (18381805174428).

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

10212021010020 is a wasteful number, since it uses less digits than its factorization.

10212021010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996180 (or 996178 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10212021010020 its reverse (2001012021201), we get a palindrome (12213033031221).

The spelling of 10212021010020 in words is "ten trillion, two hundred twelve billion, twenty-one million, ten thousand, twenty".