1001001120008 has 64 divisors (see below), whose sum is σ = 2023042132800. Its totient is φ = 462625320960.

The previous prime is 1001001120001. The next prime is 1001001120011. The reversal of 1001001120008 is 8000211001001.

It is a junction number, because it is equal to n+sod(n) for n = 1001001119974 and 1001001120001.

It is not an unprimeable number, because it can be changed into a prime (1001001120001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2850128 + ... + 3182016.

It is an arithmetic number, because the mean of its divisors is an integer number (31610033325).

Almost surely, 2^{1001001120008} is an apocalyptic number.

It is an amenable number.

1001001120008 is an abundant number, since it is smaller than the sum of its proper divisors (1022041012792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001001120008 is a wasteful number, since it uses less digits than its factorization.

1001001120008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332310 (or 332306 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1001001120008 its reverse (8000211001001), we get a palindrome (9001212121009).

The spelling of 1001001120008 in words is "one trillion, one billion, one million, one hundred twenty thousand, eight".