112012122221221 has 8 divisors (see below), whose sum is σ = 112178638955520. Its totient is φ = 111845635288272.

The previous prime is 112012122221149. The next prime is 112012122221227. The reversal of 112012122221221 is 122122221210211.

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 112012122221221 - 2¹⁷ = 112012122090149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112012122221192 and 112012122221201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112012122221227) 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, 78151 + ... + 14967643.

It is an arithmetic number, because the mean of its divisors is an integer number (14022329869440).

Almost surely, 2^{112012122221221} is an apocalyptic number.

It is an amenable number.

112012122221221 is a deficient number, since it is larger than the sum of its proper divisors (166516734299).

112012122221221 is a wasteful number, since it uses less digits than its factorization.

112012122221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14900675.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 112012122221221 its reverse (122122221210211), we get a palindrome (234134343431432).

The spelling of 112012122221221 in words is "one hundred twelve trillion, twelve billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty-one".