100020120002 has 24 divisors (see below), whose sum is σ = 168931398636. Its totient is φ = 44354816000.

The previous prime is 100020120001. The next prime is 100020120023. The reversal of 100020120002 is 200021020001.

It can be written as a sum of positive squares in 2 ways, for example, as 98827868161 + 1192251841 = 314369^2 + 34529^2 .

It is not an unprimeable number, because it can be changed into a prime (100020120001) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5030399 + ... + 5050242.

Almost surely, 2^100020120002 is an apocalyptic number.

100020120002 is a deficient number, since it is larger than the sum of its proper divisors (68911278634).

100020120002 is a wasteful number, since it uses less digits than its factorization.

100020120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10080706 (or 10080695 counting only the distinct ones).

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

Adding to 100020120002 its reverse (200021020001), we get a palindrome (300041140003).

It can be divided in two parts, 100020 and 120002, that added together give a palindrome (220022).

The spelling of 100020120002 in words is "one hundred billion, twenty million, one hundred twenty thousand, two".