1000100010021 has 32 divisors (see below), whose sum is σ = 1525585501440. Its totient is φ = 570877203456.

The previous prime is 1000100010017. The next prime is 1000100010029. The reversal of 1000100010021 is 1200100010001.

It is not a de Polignac number, because 1000100010021 - 2² = 1000100010017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000100009991 and 1000100010009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000100010029) 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 31 ways as a sum of consecutive naturals, for example, 124743405 + ... + 124751421.

It is an arithmetic number, because the mean of its divisors is an integer number (47674546920).

Almost surely, 2^{1000100010021} is an apocalyptic number.

It is an amenable number.

1000100010021 is a deficient number, since it is larger than the sum of its proper divisors (525485491419).

1000100010021 is a wasteful number, since it uses less digits than its factorization.

1000100010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13613.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 1000100010021 its reverse (1200100010001), we get a palindrome (2200200020022).

The spelling of 1000100010021 in words is "one trillion, one hundred million, ten thousand, twenty-one".