112021222121 has 8 divisors (see below), whose sum is σ = 112261101120. Its totient is φ = 111781412272.

The previous prime is 112021222021. The next prime is 112021222129. The reversal of 112021222121 is 121222120211.

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-112021222121 is a prime.

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 112021222121.

It is not an unprimeable number, because it can be changed into a prime (112021222129) 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, 4423331 + ... + 4448583.

It is an arithmetic number, because the mean of its divisors is an integer number (14032637640).

Almost surely, 2^112021222121 is an apocalyptic number.

It is an amenable number.

112021222121 is a deficient number, since it is larger than the sum of its proper divisors (239878999).

112021222121 is an equidigital number, since it uses as much as digits as its factorization.

112021222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34575.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 112021222121 its reverse (121222120211), we get a palindrome (233243342332).

The spelling of 112021222121 in words is "one hundred twelve billion, twenty-one million, two hundred twenty-two thousand, one hundred twenty-one".