10020200020020 has 96 divisors (see below), whose sum is σ = 31476615555840. Its totient is φ = 2646111058560.

The previous prime is 10020200020001. The next prime is 10020200020043. The reversal of 10020200020020 is 2002000202001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10020200019984 and 10020200020011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90021691 + ... + 90132930.

It is an arithmetic number, because the mean of its divisors is an integer number (327881412040).

Almost surely, 2^{10020200020020} is an apocalyptic number.

10020200020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10020200020020 is an abundant number, since it is smaller than the sum of its proper divisors (21456415535820).

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

10020200020020 is a wasteful number, since it uses less digits than its factorization.

10020200020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180154742 (or 180154734 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 10020200020020 its reverse (2002000202001), we get a palindrome (12022200222021).

The spelling of 10020200020020 in words is "ten trillion, twenty billion, two hundred million, twenty thousand, twenty".