100021066 has 16 divisors (see below), whose sum is σ = 161607168. Its totient is φ = 46292400.

The previous prime is 100021039. The next prime is 100021091. The reversal of 100021066 is 660120001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33645 + ... + 36496.

It is an arithmetic number, because the mean of its divisors is an integer number (10100448).

Almost surely, 2^100021066 is an apocalyptic number.

100021066 is a deficient number, since it is larger than the sum of its proper divisors (61586102).

100021066 is a wasteful number, since it uses less digits than its factorization.

100021066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70197.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 100021066 is about 10001.0532445338. The cubic root of 100021066 is about 464.1914743096.

Adding to 100021066 its reverse (660120001), we get a palindrome (760141067).

The spelling of 100021066 in words is "one hundred million, twenty-one thousand, sixty-six".