112122001222221 has 16 divisors (see below), whose sum is σ = 149558786334720. Its totient is φ = 74716613915760.

The previous prime is 112122001222201. The next prime is 112122001222223. The reversal of 112122001222221 is 122222100221211.

It is not a de Polignac number, because 112122001222221 - 2²¹ = 112121999125069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112122001222223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82267896 + ... + 83619678.

It is an arithmetic number, because the mean of its divisors is an integer number (9347424145920).

Almost surely, 2^{112122001222221} is an apocalyptic number.

It is an amenable number.

112122001222221 is a deficient number, since it is larger than the sum of its proper divisors (37436785112499).

112122001222221 is a wasteful number, since it uses less digits than its factorization.

112122001222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363376.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 112122001222221 its reverse (122222100221211), we get a palindrome (234344101443432).

The spelling of 112122001222221 in words is "one hundred twelve trillion, one hundred twenty-two billion, one million, two hundred twenty-two thousand, two hundred twenty-one".