10210002020 has 24 divisors (see below), whose sum is σ = 21577577784. Its totient is φ = 4057986816.

The previous prime is 10210002007. The next prime is 10210002043. The reversal of 10210002020 is 2020001201.

It can be written as a sum of positive squares in 4 ways, for example, as 3181862464 + 7028139556 = 56408^2 + 83834^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10210001989 and 10210002007.

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, 1622657 + ... + 1628936.

It is an arithmetic number, because the mean of its divisors is an integer number (899065741).

Almost surely, 2^10210002020 is an apocalyptic number.

10210002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10210002020 is an abundant number, since it is smaller than the sum of its proper divisors (11367575764).

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

10210002020 is a wasteful number, since it uses less digits than its factorization.

10210002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251759 (or 3251757 counting only the distinct ones).

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

Adding to 10210002020 its reverse (2020001201), we get a palindrome (12230003221).

The spelling of 10210002020 in words is "ten billion, two hundred ten million, two thousand, twenty".