1001012001002 has 16 divisors (see below), whose sum is σ = 1702125670560. Its totient is φ = 437689457712.

The previous prime is 1001012000969. The next prime is 1001012001037. The reversal of 1001012001002 is 2001002101001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1013169548 + ... + 1013170535.

It is an arithmetic number, because the mean of its divisors is an integer number (106382854410).

Almost surely, 2^{1001012001002} is an apocalyptic number.

1001012001002 is a deficient number, since it is larger than the sum of its proper divisors (701113669558).

1001012001002 is a wasteful number, since it uses less digits than its factorization.

1001012001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026340117.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1001012001002 its reverse (2001002101001), we get a palindrome (3002014102003).

Subtracting 1001012001002 from its reverse (2001002101001), we obtain a palindrome (999990099999).

The spelling of 1001012001002 in words is "one trillion, one billion, twelve million, one thousand, two".