1002223312221 has 16 divisors (see below), whose sum is σ = 1339449965568. Its totient is φ = 666573390000.

The previous prime is 1002223312219. The next prime is 1002223312231. The reversal of 1002223312221 is 1222133222001.

It is not a de Polignac number, because 1002223312221 - 2¹ = 1002223312219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002223312231) 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, 6580866 + ... + 6731436.

It is an arithmetic number, because the mean of its divisors is an integer number (83715622848).

Almost surely, 2^{1002223312221} is an apocalyptic number.

It is an amenable number.

1002223312221 is a deficient number, since it is larger than the sum of its proper divisors (337226653347).

1002223312221 is a wasteful number, since it uses less digits than its factorization.

1002223312221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155792.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1002223312221 its reverse (1222133222001), we get a palindrome (2224356534222).

The spelling of 1002223312221 in words is "one trillion, two billion, two hundred twenty-three million, three hundred twelve thousand, two hundred twenty-one".