111222120313121 has 8 divisors (see below), whose sum is σ = 112796668979904. Its totient is φ = 109657085536080.

The previous prime is 111222120313039. The next prime is 111222120313123. The reversal of 111222120313121 is 121313021222111.

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 111222120313121 - 2¹⁰ = 111222120312097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111222120313123) 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, 2378448890 + ... + 2378495651.

It is an arithmetic number, because the mean of its divisors is an integer number (14099583622488).

Almost surely, 2^{111222120313121} is an apocalyptic number.

It is an amenable number.

111222120313121 is a deficient number, since it is larger than the sum of its proper divisors (1574548666783).

111222120313121 is a wasteful number, since it uses less digits than its factorization.

111222120313121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4756944871.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 111222120313121 its reverse (121313021222111), we get a palindrome (232535141535232).

The spelling of 111222120313121 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred twenty million, three hundred thirteen thousand, one hundred twenty-one".