2002313221002 has 32 divisors (see below), whose sum is σ = 4512255154560. Its totient is φ = 658037207520.

The previous prime is 2002313221001. The next prime is 2002313221019. The reversal of 2002313221002 is 2001223132002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2002313221001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261122043 + ... + 261129710.

It is an arithmetic number, because the mean of its divisors is an integer number (141007973580).

Almost surely, 2^{2002313221002} is an apocalyptic number.

2002313221002 is an abundant number, since it is smaller than the sum of its proper divisors (2509941933558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2002313221002 is a wasteful number, since it uses less digits than its factorization.

2002313221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522251835 (or 522251829 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 2002313221002 its reverse (2001223132002), we get a palindrome (4003536353004).

The spelling of 2002313221002 in words is "two trillion, two billion, three hundred thirteen million, two hundred twenty-one thousand, two".