2100005200001 has 4 divisors (see below), whose sum is σ = 2100057579312. Its totient is φ = 2099952820692.

The previous prime is 2100005199991. The next prime is 2100005200049. The reversal of 2100005200001 is 1000025000012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2100005200001 - 2³⁸ = 1825127293057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100005200301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26129471 + ... + 26209716.

It is an arithmetic number, because the mean of its divisors is an integer number (525014394828).

Almost surely, 2^{2100005200001} is an apocalyptic number.

It is an amenable number.

2100005200001 is a deficient number, since it is larger than the sum of its proper divisors (52379311).

2100005200001 is an equidigital number, since it uses as much as digits as its factorization.

2100005200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52379310.

The product of its (nonzero) digits is 20, while the sum is 11.

The spelling of 2100005200001 in words is "two trillion, one hundred billion, five million, two hundred thousand, one".