2100020010008 has 32 divisors (see below), whose sum is σ = 4303646328960. Its totient is φ = 956365847040.

The previous prime is 2100020010007. The next prime is 2100020010017. The reversal of 2100020010008 is 8000100200012.

It is a junction number, because it is equal to n+sod(n) for n = 2100020009974 and 2100020010001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100020010007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249049391 + ... + 249057822.

It is an arithmetic number, because the mean of its divisors is an integer number (134488947780).

Almost surely, 2^{2100020010008} is an apocalyptic number.

It is an amenable number.

2100020010008 is an abundant number, since it is smaller than the sum of its proper divisors (2203626318952).

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

2100020010008 is a wasteful number, since it uses less digits than its factorization.

2100020010008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498107267 (or 498107263 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The spelling of 2100020010008 in words is "two trillion, one hundred billion, twenty million, ten thousand, eight".