12121110122001 has 8 divisors (see below), whose sum is σ = 16537328538720. Its totient is φ = 7892815893312.

The previous prime is 12121110121957. The next prime is 12121110122029. The reversal of 12121110122001 is 10022101112121.

It is a happy number.

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

It is not a de Polignac number, because 12121110122001 - 2¹⁵ = 12121110089233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12121110122071) 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, 46981046856 + ... + 46981047113.

It is an arithmetic number, because the mean of its divisors is an integer number (2067166067340).

Almost surely, 2^{12121110122001} is an apocalyptic number.

It is an amenable number.

12121110122001 is a deficient number, since it is larger than the sum of its proper divisors (4416218416719).

12121110122001 is an equidigital number, since it uses as much as digits as its factorization.

12121110122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93962094015.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12121110122001 its reverse (10022101112121), we get a palindrome (22143211234122).

The spelling of 12121110122001 in words is "twelve trillion, one hundred twenty-one billion, one hundred ten million, one hundred twenty-two thousand, one".