12100056571099 has 4 divisors (see below), whose sum is σ = 13828636081264. Its totient is φ = 10371477060936.

The previous prime is 12100056571051. The next prime is 12100056571103. The reversal of 12100056571099 is 99017565000121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12100056571099 - 2⁹ = 12100056570587 is a prime.

It is a super-2 number, since 2×12100056571099² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12100056575099) 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, 864289755072 + ... + 864289755085.

It is an arithmetic number, because the mean of its divisors is an integer number (3457159020316).

Almost surely, 2^{12100056571099} is an apocalyptic number.

12100056571099 is a deficient number, since it is larger than the sum of its proper divisors (1728579510165).

12100056571099 is an equidigital number, since it uses as much as digits as its factorization.

12100056571099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728579510164.

The product of its (nonzero) digits is 170100, while the sum is 46.

The spelling of 12100056571099 in words is "twelve trillion, one hundred billion, fifty-six million, five hundred seventy-one thousand, ninety-nine".