12100012195 has 4 divisors (see below), whose sum is σ = 14520014640. Its totient is φ = 9680009752.

The previous prime is 12100012147. The next prime is 12100012207. The reversal of 12100012195 is 59121000121.

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 12100012195 - 2¹¹ = 12100010147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1210001215 + ... + 1210001224.

It is an arithmetic number, because the mean of its divisors is an integer number (3630003660).

Almost surely, 2^12100012195 is an apocalyptic number.

12100012195 is a deficient number, since it is larger than the sum of its proper divisors (2420002445).

12100012195 is an equidigital number, since it uses as much as digits as its factorization.

12100012195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420002444.

The product of its (nonzero) digits is 180, while the sum is 22.

The spelling of 12100012195 in words is "twelve billion, one hundred million, twelve thousand, one hundred ninety-five".