10100002021 has 8 divisors (see below), whose sum is σ = 10243904000. Its totient is φ = 9957031920.

The previous prime is 10100002009. The next prime is 10100002043. The reversal of 10100002021 is 12020000101.

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

It is a cyclic number.

It is not a de Polignac number, because 10100002021 - 2¹⁹ = 10099477733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10100001995 and 10100002013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10100002421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211125 + ... + 254506.

It is an arithmetic number, because the mean of its divisors is an integer number (1280488000).

Almost surely, 2^10100002021 is an apocalyptic number.

It is an amenable number.

10100002021 is a deficient number, since it is larger than the sum of its proper divisors (143901979).

10100002021 is a wasteful number, since it uses less digits than its factorization.

10100002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465939.

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

Adding to 10100002021 its reverse (12020000101), we get a palindrome (22120002122).

The spelling of 10100002021 in words is "ten billion, one hundred million, two thousand, twenty-one".