1002223321021 has 12 divisors (see below), whose sum is σ = 1085635424928. Its totient is φ = 924798732624.

The previous prime is 1002223321007. The next prime is 1002223321031. The reversal of 1002223321021 is 1201233222001.

It is not a de Polignac number, because 1002223321021 - 2¹⁷ = 1002223189949 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 1002223321021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002223321031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 584145 + ... + 1531558.

It is an arithmetic number, because the mean of its divisors is an integer number (90469618744).

Almost surely, 2^{1002223321021} is an apocalyptic number.

It is an amenable number.

1002223321021 is a deficient number, since it is larger than the sum of its proper divisors (83412103907).

1002223321021 is a wasteful number, since it uses less digits than its factorization.

1002223321021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118532 (or 2118519 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1002223321021 its reverse (1201233222001), we get a palindrome (2203456543022).

It can be divided in two parts, 100222 and 3321021, that added together give a palindrome (3421243).

The spelling of 1002223321021 in words is "one trillion, two billion, two hundred twenty-three million, three hundred twenty-one thousand, twenty-one".