1001021000101 has 8 divisors (see below), whose sum is σ = 1004884925184. Its totient is φ = 997161516720.

The previous prime is 1001021000039. The next prime is 1001021000129. The reversal of 1001021000101 is 1010001201001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1001021000101 - 2¹⁵ = 1001020967333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001021000171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658465 + ... + 1560646.

It is an arithmetic number, because the mean of its divisors is an integer number (125610615648).

Almost surely, 2^{1001021000101} is an apocalyptic number.

It is an amenable number.

1001021000101 is a deficient number, since it is larger than the sum of its proper divisors (3863925083).

1001021000101 is a wasteful number, since it uses less digits than its factorization.

1001021000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220851.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 1001021000101 its reverse (1010001201001), we get a palindrome (2011022201102).

The spelling of 1001021000101 in words is "one trillion, one billion, twenty-one million, one hundred one", and thus it is an aban number.