12121111012119 has 4 divisors (see below), whose sum is σ = 16161481349496. Its totient is φ = 8080740674744.

The previous prime is 12121111012103. The next prime is 12121111012123. The reversal of 12121111012119 is 91121011112121.

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 12121111012119 - 2⁴ = 12121111012103 is a prime.

It is a super-2 number, since 2×12121111012119² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121111012169) 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 3 ways as a sum of consecutive naturals, for example, 2020185168684 + ... + 2020185168689.

It is an arithmetic number, because the mean of its divisors is an integer number (4040370337374).

Almost surely, 2^{12121111012119} is an apocalyptic number.

12121111012119 is a deficient number, since it is larger than the sum of its proper divisors (4040370337377).

12121111012119 is an equidigital number, since it uses as much as digits as its factorization.

12121111012119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040370337376.

The product of its (nonzero) digits is 72, while the sum is 24.

The spelling of 12121111012119 in words is "twelve trillion, one hundred twenty-one billion, one hundred eleven million, twelve thousand, one hundred nineteen".