112123204340221 has 8 divisors (see below), whose sum is σ = 114858867131064. Its totient is φ = 109387586810880.

The previous prime is 112123204340209. The next prime is 112123204340291. The reversal of 112123204340221 is 122043402321211.

It can be written as a sum of positive squares in 4 ways, for example, as 6093739102500 + 106029465237721 = 2468550^2 + 10297061^2 .

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 112123204340221 - 2¹⁹ = 112123203815933 is a prime.

It is a super-2 number, since 2×112123204340221² (a number of 29 digits) contains 22 as substring.

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 112123204340221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112123204340291) 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, 6273396 + ... + 16235821.

It is an arithmetic number, because the mean of its divisors is an integer number (14357358391383).

Almost surely, 2^{112123204340221} is an apocalyptic number.

It is an amenable number.

112123204340221 is a deficient number, since it is larger than the sum of its proper divisors (2735662790843).

112123204340221 is a wasteful number, since it uses less digits than its factorization.

112123204340221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22630751.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 112123204340221 its reverse (122043402321211), we get a palindrome (234166606661432).

The spelling of 112123204340221 in words is "one hundred twelve trillion, one hundred twenty-three billion, two hundred four million, three hundred forty thousand, two hundred twenty-one".