1002021330202 has 16 divisors (see below), whose sum is σ = 1532908984680. Its totient is φ = 491070408192.

The previous prime is 1002021330197. The next prime is 1002021330209. The reversal of 1002021330202 is 2020331202001.

It can be written as a sum of positive squares in 4 ways, for example, as 952207107721 + 49814222481 = 975811^2 + 223191^2 .

It is not an unprimeable number, because it can be changed into a prime (1002021330209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4577403 + ... + 4791310.

Almost surely, 2^{1002021330202} is an apocalyptic number.

1002021330202 is a deficient number, since it is larger than the sum of its proper divisors (530887654478).

1002021330202 is a wasteful number, since it uses less digits than its factorization.

1002021330202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9369777.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1002021330202 its reverse (2020331202001), we get a palindrome (3022352532203).

The spelling of 1002021330202 in words is "one trillion, two billion, twenty-one million, three hundred thirty thousand, two hundred two".