100021010001 has 32 divisors (see below), whose sum is σ = 148412479488. Its totient is φ = 59411197440.

The previous prime is 100021009987. The next prime is 100021010021. The reversal of 100021010001 is 100010120001.

It is not a de Polignac number, because 100021010001 - 2⁵ = 100021009969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100021010021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178020 + ... + 481386.

It is an arithmetic number, because the mean of its divisors is an integer number (4637889984).

Almost surely, 2^100021010001 is an apocalyptic number.

100021010001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100021010001 is a deficient number, since it is larger than the sum of its proper divisors (48391469487).

100021010001 is a wasteful number, since it uses less digits than its factorization.

100021010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303581.

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

Adding to 100021010001 its reverse (100010120001), we get a palindrome (200031130002).

Subtracting from 100021010001 its reverse (100010120001), we obtain a square (10890000 = 3300²).

The spelling of 100021010001 in words is "one hundred billion, twenty-one million, ten thousand, one".