100001021000002 has 8 divisors (see below), whose sum is σ = 150002346954636. Its totient is φ = 50000238681792.

The previous prime is 100001020999969. The next prime is 100001021000029. The reversal of 100001021000002 is 200000120100001.

It can be written as a sum of positive squares in 2 ways, for example, as 94204863634561 + 5796157365441 = 9705919^2 + 2407521^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135448923 + ... + 136185214.

Almost surely, 2^{100001021000002} is an apocalyptic number.

100001021000002 is a deficient number, since it is larger than the sum of its proper divisors (50001325954634).

100001021000002 is a wasteful number, since it uses less digits than its factorization.

100001021000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271818212.

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

Adding to 100001021000002 its reverse (200000120100001), we get a palindrome (300001141100003).

Subtracting 100001021000002 from its reverse (200000120100001), we obtain a palindrome (99999099099999).

The spelling of 100001021000002 in words is "one hundred trillion, one billion, twenty-one million, two", and thus it is an aban number.