112121110210121 has 16 divisors (see below), whose sum is σ = 112904681323200. Its totient is φ = 111340443801600.

The previous prime is 112121110210093. The next prime is 112121110210133. The reversal of 112121110210121 is 121012011121211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112121110210121 is a prime.

It is a super-2 number, since 2×112121110210121² (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 112121110210121.

It is not an unprimeable number, because it can be changed into a prime (112121110212121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362930921 + ... + 363239721.

It is an arithmetic number, because the mean of its divisors is an integer number (7056542582700).

Almost surely, 2^{112121110210121} is an apocalyptic number.

It is an amenable number.

112121110210121 is a deficient number, since it is larger than the sum of its proper divisors (783571113079).

112121110210121 is a wasteful number, since it uses less digits than its factorization.

112121110210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313496.

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

Adding to 112121110210121 its reverse (121012011121211), we get a palindrome (233133121331332).

The spelling of 112121110210121 in words is "one hundred twelve trillion, one hundred twenty-one billion, one hundred ten million, two hundred ten thousand, one hundred twenty-one".