20010120211008 has 84 divisors (see below), whose sum is σ = 60374101766160. Its totient is φ = 6318985326336.

The previous prime is 20010120211007. The next prime is 20010120211031. The reversal of 20010120211008 is 80011202101002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20010120211007) 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, 914194110 + ... + 914215997.

It is an arithmetic number, because the mean of its divisors is an integer number (718739306740).

Almost surely, 2^{20010120211008} is an apocalyptic number.

It is an amenable number.

20010120211008 is an abundant number, since it is smaller than the sum of its proper divisors (40363981555152).

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

20010120211008 is a wasteful number, since it uses less digits than its factorization.

20010120211008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828410144 (or 1828410131 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The spelling of 20010120211008 in words is "twenty trillion, ten billion, one hundred twenty million, two hundred eleven thousand, eight".