12121120002121 has 8 divisors (see below), whose sum is σ = 13210785100800. Its totient is φ = 11053922225232.

The previous prime is 12121120002113. The next prime is 12121120002149. The reversal of 12121120002121 is 12120002112121.

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 12121120002121 - 2³ = 12121120002113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12121120002095 and 12121120002104.

It is not an unprimeable number, because it can be changed into a prime (12121120002151) 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 7 ways as a sum of consecutive naturals, for example, 5616829321 + ... + 5616831478.

It is an arithmetic number, because the mean of its divisors is an integer number (1651348137600).

Almost surely, 2^{12121120002121} is an apocalyptic number.

It is an amenable number.

12121120002121 is a deficient number, since it is larger than the sum of its proper divisors (1089665098679).

12121120002121 is a wasteful number, since it uses less digits than its factorization.

12121120002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11233660895.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12121120002121 its reverse (12120002112121), we get a palindrome (24241122114242).

The spelling of 12121120002121 in words is "twelve trillion, one hundred twenty-one billion, one hundred twenty million, two thousand, one hundred twenty-one".