100021024 has 24 divisors (see below), whose sum is σ = 197261568. Its totient is φ = 49922880.

The previous prime is 100021003. The next prime is 100021039. The reversal of 100021024 is 420120001.

It is a self number, because there is not a number n which added to its sum of digits gives 100021024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18289 + ... + 23119.

It is an arithmetic number, because the mean of its divisors is an integer number (8219232).

Almost surely, 2^100021024 is an apocalyptic number.

It is an amenable number.

100021024 is a deficient number, since it is larger than the sum of its proper divisors (97240544).

100021024 is an equidigital number, since it uses as much as digits as its factorization.

100021024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5488 (or 5480 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 100021024 is about 10001.0511447547. The cubic root of 100021024 is about 464.1914093365.

Adding to 100021024 its reverse (420120001), we get a palindrome (520141025).

It can be divided in two parts, 10002 and 1024, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 100021024 in words is "one hundred million, twenty-one thousand, twenty-four".