10020000020000 has 120 divisors (see below), whose sum is σ = 24881088765456. Its totient is φ = 3970541216000.

The previous prime is 10020000019993. The next prime is 10020000020029. The reversal of 10020000020000 is 2000002001.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 201122 + ... + 4481121.

Almost surely, 2^{10020000020000} is an apocalyptic number.

10020000020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10020000020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12440544382728).

10020000020000 is an abundant number, since it is smaller than the sum of its proper divisors (14861088745456).

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

10020000020000 is an equidigital number, since it uses as much as digits as its factorization.

10020000020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4682380 (or 4682357 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 5.

Adding to 10020000020000 its reverse (2000002001), we get a palindrome (10022000022001).

The spelling of 10020000020000 in words is "ten trillion, twenty billion, twenty thousand".