12121010012195 has 8 divisors (see below), whose sum is σ = 16623099445344. Its totient is φ = 8311549722624.

The previous prime is 12121010012191. The next prime is 12121010012203. The reversal of 12121010012195 is 59121001012121.

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 12121010012195 - 2² = 12121010012191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12121010012191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173157285854 + ... + 173157285923.

It is an arithmetic number, because the mean of its divisors is an integer number (2077887430668).

Almost surely, 2^{12121010012195} is an apocalyptic number.

12121010012195 is a deficient number, since it is larger than the sum of its proper divisors (4502089433149).

12121010012195 is an equidigital number, since it uses as much as digits as its factorization.

12121010012195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346314571789.

The product of its (nonzero) digits is 360, while the sum is 26.

The spelling of 12121010012195 in words is "twelve trillion, one hundred twenty-one billion, ten million, twelve thousand, one hundred ninety-five".