10002204021 has 4 divisors (see below), whose sum is σ = 13336272032. Its totient is φ = 6668136012.

The previous prime is 10002204019. The next prime is 10002204053. The reversal of 10002204021 is 12040220001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 10002204021 - 2¹ = 10002204019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10002203988 and 10002204006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002204061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1667034001 + ... + 1667034006.

It is an arithmetic number, because the mean of its divisors is an integer number (3334068008).

Almost surely, 2^10002204021 is an apocalyptic number.

It is an amenable number.

10002204021 is a deficient number, since it is larger than the sum of its proper divisors (3334068011).

10002204021 is an equidigital number, since it uses as much as digits as its factorization.

10002204021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3334068010.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 10002204021 its reverse (12040220001), we get a palindrome (22042424022).

The spelling of 10002204021 in words is "ten billion, two million, two hundred four thousand, twenty-one".