10018202020 has 24 divisors (see below), whose sum is σ = 21383115768. Its totient is φ = 3941587200.

The previous prime is 10018202009. The next prime is 10018202021. The reversal of 10018202020 is 2020281001.

It can be written as a sum of positive squares in 4 ways, for example, as 1177313344 + 8840888676 = 34312^2 + 94026^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10018201985 and 10018202003.

It is not an unprimeable number, because it can be changed into a prime (10018202021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4104601 + ... + 4107040.

It is an arithmetic number, because the mean of its divisors is an integer number (890963157).

Almost surely, 2^10018202020 is an apocalyptic number.

10018202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10018202020 is an abundant number, since it is smaller than the sum of its proper divisors (11364913748).

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

10018202020 is a wasteful number, since it uses less digits than its factorization.

10018202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8211711 (or 8211709 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10018202020 its reverse (2020281001), we get a palindrome (12038483021).

The spelling of 10018202020 in words is "ten billion, eighteen million, two hundred two thousand, twenty".