100021010120008 has 16 divisors (see below), whose sum is σ = 192608026245180. Its totient is φ = 48658869787968.

The previous prime is 100021010119967. The next prime is 100021010120029. The reversal of 100021010120008 is 800021010120001.

It can be written as a sum of positive squares in 2 ways, for example, as 74968202262724 + 25052807857284 = 8658418^2 + 5005278^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100021010119973 and 100021010120000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168954408691 + ... + 168954409282.

Almost surely, 2^{100021010120008} is an apocalyptic number.

It is an amenable number.

100021010120008 is a deficient number, since it is larger than the sum of its proper divisors (92587016125172).

100021010120008 is a wasteful number, since it uses less digits than its factorization.

100021010120008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337908818016 (or 337908818012 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 100021010120008 its reverse (800021010120001), we get a palindrome (900042020240009).

The spelling of 100021010120008 in words is "one hundred trillion, twenty-one billion, ten million, one hundred twenty thousand, eight".