120012121010121 has 8 divisors (see below), whose sum is σ = 165533960014080. Its totient is φ = 77249181339792.

The previous prime is 120012121010027. The next prime is 120012121010209. The reversal of 120012121010121 is 121010121210021.

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 120012121010121 - 2¹⁰ = 120012121009097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120012121010121.

It is not an unprimeable number, because it can be changed into a prime (120012121010021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689724833305 + ... + 689724833478.

It is an arithmetic number, because the mean of its divisors is an integer number (20691745001760).

Almost surely, 2^{120012121010121} is an apocalyptic number.

It is an amenable number.

120012121010121 is a deficient number, since it is larger than the sum of its proper divisors (45521839003959).

120012121010121 is a wasteful number, since it uses less digits than its factorization.

120012121010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379449666815.

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

Adding to 120012121010121 its reverse (121010121210021), we get a palindrome (241022242220142).

The spelling of 120012121010121 in words is "one hundred twenty trillion, twelve billion, one hundred twenty-one million, ten thousand, one hundred twenty-one".