120111110122121 has 8 divisors (see below), whose sum is σ = 122904555449280. Its totient is φ = 117317672235792.

The previous prime is 120111110122097. The next prime is 120111110122141. The reversal of 120111110122121 is 121221011111021.

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 120111110122121 - 2³⁰ = 120110036380297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120111110122121.

It is not an unprimeable number, because it can be changed into a prime (120111110122141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43531151 + ... + 46208043.

It is an arithmetic number, because the mean of its divisors is an integer number (15363069431160).

Almost surely, 2^{120111110122121} is an apocalyptic number.

It is an amenable number.

120111110122121 is a deficient number, since it is larger than the sum of its proper divisors (2793445327159).

120111110122121 is a wasteful number, since it uses less digits than its factorization.

120111110122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720415.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 120111110122121 its reverse (121221011111021), we get a palindrome (241332121233142).

The spelling of 120111110122121 in words is "one hundred twenty trillion, one hundred eleven billion, one hundred ten million, one hundred twenty-two thousand, one hundred twenty-one".