10003210021 has 8 divisors (see below), whose sum is σ = 11537123840. Its totient is φ = 8495517168.

The previous prime is 10003209977. The next prime is 10003210031. The reversal of 10003210021 is 12001230001.

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 10003210021 - 2¹⁹ = 10002685733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10003210031) 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, 6554421 + ... + 6555946.

It is an arithmetic number, because the mean of its divisors is an integer number (1442140480).

Almost surely, 2^10003210021 is an apocalyptic number.

It is an amenable number.

10003210021 is a deficient number, since it is larger than the sum of its proper divisors (1533913819).

10003210021 is a wasteful number, since it uses less digits than its factorization.

10003210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13110483.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 10003210021 its reverse (12001230001), we get a palindrome (22004440022).

The spelling of 10003210021 in words is "ten billion, three million, two hundred ten thousand, twenty-one".