1020201020000 has 60 divisors (see below), whose sum is σ = 2509847588556. Its totient is φ = 408080400000.

The previous prime is 1020201019979. The next prime is 1020201020011. The reversal of 1020201020000 is 201020201.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1020201020000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 25485026 + ... + 25525025.

Almost surely, 2^{1020201020000} is an apocalyptic number.

1020201020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020201020000 is an abundant number, since it is smaller than the sum of its proper divisors (1489646568556).

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

1020201020000 is an frugal number, since it uses more digits than its factorization.

1020201020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51010081 (or 51010058 counting only the distinct ones).

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

Adding to 1020201020000 its reverse (201020201), we get a palindrome (1020402040201).

The spelling of 1020201020000 in words is "one trillion, twenty billion, two hundred one million, twenty thousand".