112221222121 has 8 divisors (see below), whose sum is σ = 113686496000. Its totient is φ = 110757067200.

The previous prime is 112221222089. The next prime is 112221222149. The reversal of 112221222121 is 121222122211.

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 112221222121 - 2⁵ = 112221222089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112221222721) 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, 76896 + ... + 479953.

It is an arithmetic number, because the mean of its divisors is an integer number (14210812000).

Almost surely, 2^112221222121 is an apocalyptic number.

It is an amenable number.

112221222121 is a deficient number, since it is larger than the sum of its proper divisors (1465273879).

112221222121 is an equidigital number, since it uses as much as digits as its factorization.

112221222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559479.

The product of its digits is 128, while the sum is 19.

Adding to 112221222121 its reverse (121222122211), we get a palindrome (233443344332).

The spelling of 112221222121 in words is "one hundred twelve billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-one".