112112221221221 has 8 divisors (see below), whose sum is σ = 121476951358560. Its totient is φ = 102853307243952.

The previous prime is 112112221221199. The next prime is 112112221221227. The reversal of 112112221221221 is 122122122211211.

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-112112221221221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112112221221227) 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, 26454037811 + ... + 26454042048.

It is an arithmetic number, because the mean of its divisors is an integer number (15184618919820).

Almost surely, 2^{112112221221221} is an apocalyptic number.

It is an amenable number.

112112221221221 is a deficient number, since it is larger than the sum of its proper divisors (9364730137339).

112112221221221 is a wasteful number, since it uses less digits than its factorization.

112112221221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52908080035.

The product of its digits is 256, while the sum is 23.

Adding to 112112221221221 its reverse (122122122211211), we get a palindrome (234234343432432).

The spelling of 112112221221221 in words is "one hundred twelve trillion, one hundred twelve billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred twenty-one".