10010020100020 has 12 divisors (see below), whose sum is σ = 21021042210084. Its totient is φ = 4004008040000.

The previous prime is 10010020099999. The next prime is 10010020100027. The reversal of 10010020100020 is 2000102001001.

10010020100020 is digitally balanced in base 2, 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 2 ways, for example, as 2007333574416 + 8002686525604 = 1416804^2 + 2828902^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10010020099976 and 10010020100012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10010020100027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250250502481 + ... + 250250502520.

It is an arithmetic number, because the mean of its divisors is an integer number (1751753517507).

Almost surely, 2^{10010020100020} is an apocalyptic number.

10010020100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10010020100020 is an abundant number, since it is smaller than the sum of its proper divisors (11011022110064).

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

10010020100020 is a wasteful number, since it uses less digits than its factorization.

10010020100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500501005010 (or 500501005008 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 10010020100020 its reverse (2000102001001), we get a palindrome (12010122101021).

The spelling of 10010020100020 in words is "ten trillion, ten billion, twenty million, one hundred thousand, twenty".