112121111011121 has 8 divisors (see below), whose sum is σ = 117016321080384. Its totient is φ = 107227599204880.

The previous prime is 112121111011103. The next prime is 112121111011139. The reversal of 112121111011121 is 121110111121211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (112121111011103) and next prime (112121111011139).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112121111011121 is a prime.

It is a super-2 number, since 2×112121111011121² (a number of 29 digits) contains 22 as substring.

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 112121111011121.

It is not an unprimeable number, because it can be changed into a prime (112121111011621) 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, 424430831 + ... + 424694916.

It is an arithmetic number, because the mean of its divisors is an integer number (14627040135048).

Almost surely, 2^{112121111011121} is an apocalyptic number.

It is an amenable number.

112121111011121 is a deficient number, since it is larger than the sum of its proper divisors (4895210069263).

112121111011121 is an equidigital number, since it uses as much as digits as its factorization.

112121111011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849131511.

The product of its (nonzero) digits is 8, while the sum is 17.

Adding to 112121111011121 its reverse (121110111121211), we get a palindrome (233231222132332).

The spelling of 112121111011121 in words is "one hundred twelve trillion, one hundred twenty-one billion, one hundred eleven million, eleven thousand, one hundred twenty-one".