1000100201020 has 12 divisors (see below), whose sum is σ = 2100210422184. Its totient is φ = 400040080400.

The previous prime is 1000100200991. The next prime is 1000100201021. The reversal of 1000100201020 is 201020010001.

It is a junction number, because it is equal to n+sod(n) for n = 1000100200994 and 1000100201012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000100201021) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 25002505006 + ... + 25002505045.

It is an arithmetic number, because the mean of its divisors is an integer number (175017535182).

Almost surely, 2^{1000100201020} is an apocalyptic number.

1000100201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000100201020 is an abundant number, since it is smaller than the sum of its proper divisors (1100110221164).

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

1000100201020 is a wasteful number, since it uses less digits than its factorization.

1000100201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50005010060 (or 50005010058 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 1000100201020 its reverse (201020010001), we get a palindrome (1201120211021).

The spelling of 1000100201020 in words is "one trillion, one hundred million, two hundred one thousand, twenty".