202021010010020 has 48 divisors (see below), whose sum is σ = 425302004895600. Its totient is φ = 80606921472000.

The previous prime is 202021010009953. The next prime is 202021010010037. The reversal of 202021010010020 is 20010010120202.

It is a happy number.

202021010010020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2222389229824 + 199798620780196 = 1490768^2 + 14135014^2 .

It is a junction number, because it is equal to n+sod(n) for n = 202021010009983 and 202021010010010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171200186 + ... + 172376174.

It is an arithmetic number, because the mean of its divisors is an integer number (8860458435325).

Almost surely, 2^{202021010010020} is an apocalyptic number.

202021010010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202021010010020 is an abundant number, since it is smaller than the sum of its proper divisors (223280994885580).

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

202021010010020 is a wasteful number, since it uses less digits than its factorization.

202021010010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197408 (or 1197406 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202021010010020 its reverse (20010010120202), we get a palindrome (222031020130222).

The spelling of 202021010010020 in words is "two hundred two trillion, twenty-one billion, ten million, ten thousand, twenty".