2126095821209 has 4 divisors (see below), whose sum is σ = 2126550216960. Its totient is φ = 2125641425460.

The previous prime is 2126095821191. The next prime is 2126095821211. The reversal of 2126095821209 is 9021285906212.

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 2126095821209 - 2¹⁶ = 2126095755673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2126095821229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227190857 + ... + 227200214.

It is an arithmetic number, because the mean of its divisors is an integer number (531637554240).

Almost surely, 2^{2126095821209} is an apocalyptic number.

It is an amenable number.

2126095821209 is a deficient number, since it is larger than the sum of its proper divisors (454395751).

2126095821209 is an equidigital number, since it uses as much as digits as its factorization.

2126095821209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454395750.

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 2126095821209 in words is "two trillion, one hundred twenty-six billion, ninety-five million, eight hundred twenty-one thousand, two hundred nine".