Search a number
-
+
12221341 = 111111031
BaseRepresentation
bin101110100111…
…101110011101
3211222220112021
4232213232131
511112040331
61113540141
7205610506
oct56475635
924886467
1012221341
116998090
124114651
1326bb982
1418a1bad
151116211
hexba7b9d

12221341 has 4 divisors (see below), whose sum is σ = 13332384. Its totient is φ = 11110300.

The previous prime is 12221333. The next prime is 12221353. The reversal of 12221341 is 14312221.

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.

It is a cyclic number.

It is not a de Polignac number, because 12221341 - 23 = 12221333 is a prime.

It is a super-2 number, since 2×122213412 = 298722351676562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221371) 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, 555505 + ... + 555526.

It is an arithmetic number, because the mean of its divisors is an integer number (3333096).

Almost surely, 212221341 is an apocalyptic number.

12221341 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12221341 is a deficient number, since it is larger than the sum of its proper divisors (1111043).

12221341 is a wasteful number, since it uses less digits than its factorization.

12221341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111042.

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

The square root of 12221341 is about 3495.9034597654. The cubic root of 12221341 is about 230.3419048505.

Adding to 12221341 its reverse (14312221), we get a palindrome (26533562).

The spelling of 12221341 in words is "twelve million, two hundred twenty-one thousand, three hundred forty-one".

Divisors: 1 11 1111031 12221341