100021010020001 has 64 divisors (see below), whose sum is σ = 122969910067200. Its totient is φ = 81159302347200.

The previous prime is 100021010019991. The next prime is 100021010020013. The reversal of 100021010020001 is 100020010120001.

It is not a de Polignac number, because 100021010020001 - 2³⁰ = 100019936278177 is a prime.

It is a super-2 number, since 2×100021010020001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100021010020031) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2026209746 + ... + 2026259108.

It is an arithmetic number, because the mean of its divisors is an integer number (1921404844800).

Almost surely, 2^{100021010020001} is an apocalyptic number.

It is an amenable number.

100021010020001 is a deficient number, since it is larger than the sum of its proper divisors (22948900047199).

100021010020001 is a wasteful number, since it uses less digits than its factorization.

100021010020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52051 (or 52037 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 100021010020001 its reverse (100020010120001), we get a palindrome (200041020140002).

The spelling of 100021010020001 in words is "one hundred trillion, twenty-one billion, ten million, twenty thousand, one".