1002200212221 has 16 divisors (see below), whose sum is σ = 1439125230144. Its totient is φ = 616709228544.

The previous prime is 1002200212217. The next prime is 1002200212333. The reversal of 1002200212221 is 1222120022001.

It is not a de Polignac number, because 1002200212221 - 2² = 1002200212217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002200212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002200216221) 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, 232650 + ... + 1434756.

It is an arithmetic number, because the mean of its divisors is an integer number (89945326884).

Almost surely, 2^{1002200212221} is an apocalyptic number.

It is an amenable number.

1002200212221 is a deficient number, since it is larger than the sum of its proper divisors (436925017923).

1002200212221 is a wasteful number, since it uses less digits than its factorization.

1002200212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223500.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1002200212221 its reverse (1222120022001), we get a palindrome (2224320234222).

The spelling of 1002200212221 in words is "one trillion, two billion, two hundred million, two hundred twelve thousand, two hundred twenty-one".