1001202021002 has 8 divisors (see below), whose sum is σ = 1501809377700. Its totient is φ = 500598895104.

The previous prime is 1001202020953. The next prime is 1001202021023. The reversal of 1001202021002 is 2001202021001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 983272543201 + 17929477801 = 991601^2 + 133901^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378977 + ... + 1464932.

Almost surely, 2^{1001202021002} is an apocalyptic number.

1001202021002 is a deficient number, since it is larger than the sum of its proper divisors (500607356698).

1001202021002 is a wasteful number, since it uses less digits than its factorization.

1001202021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115400.

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

Adding to 1001202021002 its reverse (2001202021001), we get a palindrome (3002404042003).

Subtracting 1001202021002 from its reverse (2001202021001), we obtain a palindrome (999999999999).

The spelling of 1001202021002 in words is "one trillion, one billion, two hundred two million, twenty-one thousand, two".