2100100210001 has 8 divisors (see below), whose sum is σ = 2105324113320. Its totient is φ = 2094881686912.

The previous prime is 2100100209983. The next prime is 2100100210037. The reversal of 2100100210001 is 1000120010012.

It can be written as a sum of positive squares in 4 ways, for example, as 576196373776 + 1523903836225 = 759076^2 + 1234465^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2100100210001 - 2¹⁴ = 2100100193617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100100210081) 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, 562850 + ... + 2125323.

It is an arithmetic number, because the mean of its divisors is an integer number (263165514165).

Almost surely, 2^{2100100210001} is an apocalyptic number.

It is an amenable number.

2100100210001 is a deficient number, since it is larger than the sum of its proper divisors (5223903319).

2100100210001 is a wasteful number, since it uses less digits than its factorization.

2100100210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690115.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 2100100210001 its reverse (1000120010012), we get a palindrome (3100220220013).

The spelling of 2100100210001 in words is "two trillion, one hundred billion, one hundred million, two hundred ten thousand, one".