12121111112099 has 8 divisors (see below), whose sum is σ = 13228664346048. Its totient is φ = 11014496885160.

The previous prime is 12121111112023. The next prime is 12121111112101. The reversal of 12121111112099 is 99021111112121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12121111112099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121111112399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234724757 + ... + 234776390.

It is an arithmetic number, because the mean of its divisors is an integer number (1653583043256).

Almost surely, 2^{12121111112099} is an apocalyptic number.

12121111112099 is a deficient number, since it is larger than the sum of its proper divisors (1107553233949).

12121111112099 is a wasteful number, since it uses less digits than its factorization.

12121111112099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469503505.

The product of its (nonzero) digits is 648, while the sum is 32.

The spelling of 12121111112099 in words is "twelve trillion, one hundred twenty-one billion, one hundred eleven million, one hundred twelve thousand, ninety-nine".