1002200102221 has 4 divisors (see below), whose sum is σ = 1003019563872. Its totient is φ = 1001380640572.

The previous prime is 1002200102209. The next prime is 1002200102243. The reversal of 1002200102221 is 1222010022001.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 1002200102221 - 2²¹ = 1002198005069 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 (1002200102291) 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, 409728991 + ... + 409731436.

It is an arithmetic number, because the mean of its divisors is an integer number (250754890968).

Almost surely, 2^{1002200102221} is an apocalyptic number.

It is an amenable number.

1002200102221 is a deficient number, since it is larger than the sum of its proper divisors (819461651).

1002200102221 is an equidigital number, since it uses as much as digits as its factorization.

1002200102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819461650.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1002200102221 its reverse (1222010022001), we get a palindrome (2224210124222).

The spelling of 1002200102221 in words is "one trillion, two billion, two hundred million, one hundred two thousand, two hundred twenty-one".