10002200021 has 16 divisors (see below), whose sum is σ = 11292264000. Its totient is φ = 8775849600.

The previous prime is 10002200009. The next prime is 10002200063. The reversal of 10002200021 is 12000220001.

It is a cyclic number.

It is not a de Polignac number, because 10002200021 - 2²⁶ = 9935091157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10002199981 and 10002200008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002200521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1095686 + ... + 1104776.

It is an arithmetic number, because the mean of its divisors is an integer number (705766500).

Almost surely, 2^10002200021 is an apocalyptic number.

10002200021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10002200021 is a deficient number, since it is larger than the sum of its proper divisors (1290063979).

10002200021 is a wasteful number, since it uses less digits than its factorization.

10002200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12580.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 10002200021 its reverse (12000220001), we get a palindrome (22002420022).

The spelling of 10002200021 in words is "ten billion, two million, two hundred thousand, twenty-one".