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11234221 = 15717151
BaseRepresentation
bin101010110110…
…101110101101
3210010202110021
4222312232231
510333443341
61040442141
7164326555
oct52665655
923122407
1011234221
116383489
123919351
13243458b
1416c6165
15ebd9d1
hexab6bad

11234221 has 4 divisors (see below), whose sum is σ = 11242944. Its totient is φ = 11225500.

The previous prime is 11234213. The next prime is 11234227. The reversal of 11234221 is 12243211.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12243211 = 113108347.

It is a cyclic number.

It is not a de Polignac number, because 11234221 - 23 = 11234213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11234195 and 11234204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11234227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2005 + ... + 5146.

It is an arithmetic number, because the mean of its divisors is an integer number (2810736).

Almost surely, 211234221 is an apocalyptic number.

It is an amenable number.

11234221 is a deficient number, since it is larger than the sum of its proper divisors (8723).

11234221 is an equidigital number, since it uses as much as digits as its factorization.

11234221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8722.

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

The square root of 11234221 is about 3351.7489464457. The cubic root of 11234221 is about 223.9654296671.

Adding to 11234221 its reverse (12243211), we get a palindrome (23477432).

The spelling of 11234221 in words is "eleven million, two hundred thirty-four thousand, two hundred twenty-one".

Divisors: 1 1571 7151 11234221