10001202020 has 24 divisors (see below), whose sum is σ = 21680026368. Its totient is φ = 3871432800.

The previous prime is 10001201993. The next prime is 10001202049. The reversal of 10001202020 is 2020210001.

It is a junction number, because it is equal to n+sod(n) for n = 10001201989 and 10001202007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8064866 + ... + 8066105.

It is an arithmetic number, because the mean of its divisors is an integer number (903334432).

Almost surely, 2^10001202020 is an apocalyptic number.

10001202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001202020 is an abundant number, since it is smaller than the sum of its proper divisors (11678824348).

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

10001202020 is a wasteful number, since it uses less digits than its factorization.

10001202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16131011 (or 16131009 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 10001202020 its reverse (2020210001), we get a palindrome (12021412021).

The spelling of 10001202020 in words is "ten billion, one million, two hundred two thousand, twenty".