2001100210002 has 24 divisors (see below), whose sum is σ = 4335896632860. Its totient is φ = 667005786240.

The previous prime is 2001100209989. The next prime is 2001100210033. The reversal of 2001100210002 is 2000120011002.

It can be written as a sum of positive squares in 2 ways, for example, as 2000241661401 + 858548601 = 1414299^2 + 29301^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1852227 + ... + 2726342.

Almost surely, 2^{2001100210002} is an apocalyptic number.

2001100210002 is an abundant number, since it is smaller than the sum of its proper divisors (2334796422858).

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

2001100210002 is a wasteful number, since it uses less digits than its factorization.

2001100210002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4602858 (or 4602855 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2001100210002 its reverse (2000120011002), we get a palindrome (4001220221004).

The spelling of 2001100210002 in words is "two trillion, one billion, one hundred million, two hundred ten thousand, two".