2100212101005 has 8 divisors (see below), whose sum is σ = 3360339361632. Its totient is φ = 1120113120528.

The previous prime is 2100212100967. The next prime is 2100212101051. The reversal of 2100212101005 is 5001012120012.

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

It is not a de Polignac number, because 2100212101005 - 2¹⁰ = 2100212099981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 140014140067 = 2100212101005 / (2 + 1 + 0 + 0 + 2 + 1 + 2 + 1 + 0 + 1 + 0 + 0 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70007070019 + ... + 70007070048.

It is an arithmetic number, because the mean of its divisors is an integer number (420042420204).

Almost surely, 2^{2100212101005} is an apocalyptic number.

It is an amenable number.

2100212101005 is a deficient number, since it is larger than the sum of its proper divisors (1260127260627).

2100212101005 is a wasteful number, since it uses less digits than its factorization.

2100212101005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140014140075.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 2100212101005 its reverse (5001012120012), we get a palindrome (7101224221017).

The spelling of 2100212101005 in words is "two trillion, one hundred billion, two hundred twelve million, one hundred one thousand, five".