112121010022121 has 16 divisors (see below), whose sum is σ = 119806646129280. Its totient is φ = 104556534877440.

The previous prime is 112121010022097. The next prime is 112121010022127. The reversal of 112121010022121 is 121220010121211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112121010022121 is a prime.

It is a super-2 number, since 2×112121010022121² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 112121010022121.

It is not an unprimeable number, because it can be changed into a prime (112121010022127) 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, 255396476 + ... + 255835106.

It is an arithmetic number, because the mean of its divisors is an integer number (7487915383080).

Almost surely, 2^{112121010022121} is an apocalyptic number.

It is an amenable number.

112121010022121 is a deficient number, since it is larger than the sum of its proper divisors (7685636107159).

112121010022121 is a wasteful number, since it uses less digits than its factorization.

112121010022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576704.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 112121010022121 its reverse (121220010121211), we get a palindrome (233341020143332).

The spelling of 112121010022121 in words is "one hundred twelve trillion, one hundred twenty-one billion, ten million, twenty-two thousand, one hundred twenty-one".