1001012021002 has 32 divisors (see below), whose sum is σ = 1762546959360. Its totient is φ = 417375504000.

The previous prime is 1001012020999. The next prime is 1001012021021. The reversal of 1001012021002 is 2001202101001.

It is a self number, because there is not a number n which added to its sum of digits gives 1001012021002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6660199 + ... + 6808837.

It is an arithmetic number, because the mean of its divisors is an integer number (55079592480).

Almost surely, 2^{1001012021002} is an apocalyptic number.

1001012021002 is a deficient number, since it is larger than the sum of its proper divisors (761534938358).

1001012021002 is a wasteful number, since it uses less digits than its factorization.

1001012021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161686.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1001012021002 its reverse (2001202101001), we get a palindrome (3002214122003).

The spelling of 1001012021002 in words is "one trillion, one billion, twelve million, twenty-one thousand, two".