112222222121 has 8 divisors (see below), whose sum is σ = 112919002560. Its totient is φ = 111527576752.

The previous prime is 112222222097. The next prime is 112222222153. The reversal of 112222222121 is 121222222211.

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-112222222121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112222222093 and 112222222102.

It is not an unprimeable number, because it can be changed into a prime (112222221121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428255 + ... + 638628.

It is an arithmetic number, because the mean of its divisors is an integer number (14114875320).

Almost surely, 2^112222222121 is an apocalyptic number.

It is an amenable number.

112222222121 is a deficient number, since it is larger than the sum of its proper divisors (696780439).

112222222121 is a wasteful number, since it uses less digits than its factorization.

112222222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067535.

The product of its digits is 256, while the sum is 20.

Adding to 112222222121 its reverse (121222222211), we get a palindrome (233444444332).

The spelling of 112222222121 in words is "one hundred twelve billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty-one".