112220112121 has 8 divisors (see below), whose sum is σ = 120870236480. Its totient is φ = 103572531792.

The previous prime is 112220112113. The next prime is 112220112133. The reversal of 112220112121 is 121211022211.

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 112220112121 - 2³ = 112220112113 is a prime.

It is a super-2 number, since 2×112220112121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112220112095 and 112220112104.

It is not an unprimeable number, because it can be changed into a prime (112220112101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543891 + ... + 721288.

It is an arithmetic number, because the mean of its divisors is an integer number (15108779560).

Almost surely, 2^112220112121 is an apocalyptic number.

It is an amenable number.

112220112121 is a deficient number, since it is larger than the sum of its proper divisors (8650124359).

112220112121 is a wasteful number, since it uses less digits than its factorization.

112220112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272015.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 112220112121 its reverse (121211022211), we get a palindrome (233431134332).

The spelling of 112220112121 in words is "one hundred twelve billion, two hundred twenty million, one hundred twelve thousand, one hundred twenty-one".