10211021202020 has 24 divisors (see below), whose sum is σ = 22182563302200. Its totient is φ = 3943566808832.

The previous prime is 10211021201987. The next prime is 10211021202071. The reversal of 10211021202020 is 2020212011201.

It can be written as a sum of positive squares in 4 ways, for example, as 2856478572544 + 7354542629476 = 1690112^2 + 2711926^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10211021201986 and 10211021202004.

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 7 ways as a sum of consecutive naturals, for example, 8802603905 + ... + 8802605064.

It is an arithmetic number, because the mean of its divisors is an integer number (924273470925).

Almost surely, 2^{10211021202020} is an apocalyptic number.

10211021202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10211021202020 is an abundant number, since it is smaller than the sum of its proper divisors (11971542100180).

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

10211021202020 is a wasteful number, since it uses less digits than its factorization.

10211021202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17605209007 (or 17605209005 counting only the distinct ones).

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

Adding to 10211021202020 its reverse (2020212011201), we get a palindrome (12231233213221).

The spelling of 10211021202020 in words is "ten trillion, two hundred eleven billion, twenty-one million, two hundred two thousand, twenty".