1002021001002 has 96 divisors (see below), whose sum is σ = 2627838001152. Its totient is φ = 280200356784.

The previous prime is 1002021001001. The next prime is 1002021001039. The reversal of 1002021001002 is 2001001202001.

1002021001002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1002021001001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2973498 + ... + 3293285.

It is an arithmetic number, because the mean of its divisors is an integer number (27373312512).

Almost surely, 2^{1002021001002} is an apocalyptic number.

1002021001002 is an abundant number, since it is smaller than the sum of its proper divisors (1625817000150).

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

1002021001002 is an equidigital number, since it uses as much as digits as its factorization.

1002021001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6266854 (or 6266842 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1002021001002 its reverse (2001001202001), we get a palindrome (3003022203003).

The spelling of 1002021001002 in words is "one trillion, two billion, twenty-one million, one thousand, two".