1001022101002 has 64 divisors (see below), whose sum is σ = 1878882490368. Its totient is φ = 388584504000.

The previous prime is 1001022100979. The next prime is 1001022101021. The reversal of 1001022101002 is 2001012201001.

It is a self number, because there is not a number n which added to its sum of digits gives 1001022101002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216622252 + ... + 216626872.

It is an arithmetic number, because the mean of its divisors is an integer number (29357538912).

Almost surely, 2^{1001022101002} is an apocalyptic number.

1001022101002 is a deficient number, since it is larger than the sum of its proper divisors (877860389366).

1001022101002 is a wasteful number, since it uses less digits than its factorization.

1001022101002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9475.

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

Adding to 1001022101002 its reverse (2001012201001), we get a palindrome (3002034302003).

Subtracting 1001022101002 from its reverse (2001012201001), we obtain a palindrome (999990099999).

The spelling of 1001022101002 in words is "one trillion, one billion, twenty-two million, one hundred one thousand, two".