12121222111199 has 8 divisors (see below), whose sum is σ = 12275999434560. Its totient is φ = 11966478391296.

The previous prime is 12121222111183. The next prime is 12121222111231. The reversal of 12121222111199 is 99111122212121.

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 12121222111199 - 2⁴ = 12121222111183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121222161199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7674434 + ... + 9118079.

It is an arithmetic number, because the mean of its divisors is an integer number (1534499929320).

Almost surely, 2^{12121222111199} is an apocalyptic number.

12121222111199 is a deficient number, since it is larger than the sum of its proper divisors (154777323361).

12121222111199 is an equidigital number, since it uses as much as digits as its factorization.

12121222111199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16801729.

The product of its digits is 2592, while the sum is 35.

The spelling of 12121222111199 in words is "twelve trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred eleven thousand, one hundred ninety-nine".