10010020000020 has 48 divisors (see below), whose sum is σ = 28031976661248. Its totient is φ = 2668965270400.

The previous prime is 10010019999989. The next prime is 10010020000031. The reversal of 10010020000020 is 2000002001001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 10010019999963 and 10010020000008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11235999 + ... + 12094118.

It is an arithmetic number, because the mean of its divisors is an integer number (583999513776).

Almost surely, 2^{10010020000020} is an apocalyptic number.

10010020000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10010020000020 is an abundant number, since it is smaller than the sum of its proper divisors (18021956661228).

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

10010020000020 is a wasteful number, since it uses less digits than its factorization.

10010020000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23337280 (or 23337278 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 10010020000020 its reverse (2000002001001), we get a palindrome (12010022001021).

The spelling of 10010020000020 in words is "ten trillion, ten billion, twenty million, twenty", and thus it is an aban number and an uban number.