1002331002221 has 8 divisors (see below), whose sum is σ = 1004676309120. Its totient is φ = 999987744672.

The previous prime is 1002331002217. The next prime is 1002331002241. The reversal of 1002331002221 is 1222001332001.

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 1002331002221 - 2² = 1002331002217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1002331002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002331002241) 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, 469196 + ... + 1491578.

It is an arithmetic number, because the mean of its divisors is an integer number (125584538640).

Almost surely, 2^{1002331002221} is an apocalyptic number.

It is an amenable number.

1002331002221 is a deficient number, since it is larger than the sum of its proper divisors (2345306899).

1002331002221 is a wasteful number, since it uses less digits than its factorization.

1002331002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024675.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1002331002221 its reverse (1222001332001), we get a palindrome (2224332334222).

The spelling of 1002331002221 in words is "one trillion, two billion, three hundred thirty-one million, two thousand, two hundred twenty-one".