12121021112199 has 8 divisors (see below), whose sum is σ = 16505220238080. Its totient is φ = 7908751363896.

The previous prime is 12121021112159. The next prime is 12121021112287. The reversal of 12121021112199 is 99121112012121.

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

It is not a de Polignac number, because 12121021112199 - 2⁷ = 12121021112071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121021112119) 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, 42982344229 + ... + 42982344510.

It is an arithmetic number, because the mean of its divisors is an integer number (2063152529760).

Almost surely, 2^{12121021112199} is an apocalyptic number.

12121021112199 is a deficient number, since it is larger than the sum of its proper divisors (4384199125881).

12121021112199 is an equidigital number, since it uses as much as digits as its factorization.

12121021112199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85964688789.

The product of its (nonzero) digits is 1296, while the sum is 33.

The spelling of 12121021112199 in words is "twelve trillion, one hundred twenty-one billion, twenty-one million, one hundred twelve thousand, one hundred ninety-nine".