1002001221002 has 8 divisors (see below), whose sum is σ = 1506425527200. Its totient is φ = 499859378604.

The previous prime is 1002001220999. The next prime is 1002001221007. The reversal of 1002001221002 is 2001221002001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1002001221007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 570614852 + ... + 570616607.

It is an arithmetic number, because the mean of its divisors is an integer number (188303190900).

Almost surely, 2^{1002001221002} is an apocalyptic number.

1002001221002 is a deficient number, since it is larger than the sum of its proper divisors (504424306198).

1002001221002 is a wasteful number, since it uses less digits than its factorization.

1002001221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141231900.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1002001221002 its reverse (2001221002001), we get a palindrome (3003222223003).

The spelling of 1002001221002 in words is "one trillion, two billion, one million, two hundred twenty-one thousand, two".