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112232221 = 195906959
BaseRepresentation
bin1101011000010…
…00011100011101
321211011222122221
412230020130131
5212212412341
615045305341
72531646433
oct654103435
9254158587
10112232221
1158396802
1231705251
131a3373ca
1410c96d53
159cbded1
hex6b0871d

112232221 has 4 divisors (see below), whose sum is σ = 118139200. Its totient is φ = 106325244.

The previous prime is 112232209. The next prime is 112232227. The reversal of 112232221 is 122232211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122232211 = 428928499.

It is a cyclic number.

It is not a de Polignac number, because 112232221 - 25 = 112232189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112232195 and 112232204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112232227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2953461 + ... + 2953498.

It is an arithmetic number, because the mean of its divisors is an integer number (29534800).

Almost surely, 2112232221 is an apocalyptic number.

It is an amenable number.

112232221 is a deficient number, since it is larger than the sum of its proper divisors (5906979).

112232221 is an equidigital number, since it uses as much as digits as its factorization.

112232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5906978.

The product of its digits is 96, while the sum is 16.

The square root of 112232221 is about 10593.9709740965. The cubic root of 112232221 is about 482.3613690695.

Adding to 112232221 its reverse (122232211), we get a palindrome (234464432).

The spelling of 112232221 in words is "one hundred twelve million, two hundred thirty-two thousand, two hundred twenty-one".

Divisors: 1 19 5906959 112232221