10001021002 has 32 divisors (see below), whose sum is σ = 17349033600. Its totient is φ = 4235251200.

The previous prime is 10001020999. The next prime is 10001021039. The reversal of 10001021002 is 20012010001.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 592374 + ... + 609022.

It is an arithmetic number, because the mean of its divisors is an integer number (542157300).

Almost surely, 2^10001021002 is an apocalyptic number.

10001021002 is a deficient number, since it is larger than the sum of its proper divisors (7348012598).

10001021002 is a wasteful number, since it uses less digits than its factorization.

10001021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17166.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 10001021002 its reverse (20012010001), we get a palindrome (30013031003).

The spelling of 10001021002 in words is "ten billion, one million, twenty-one thousand, two".