# Number 1221

#### [ one thousand two hundred twenty-one ]

### Properties of number 1221

Cross Sum:

Count of divisors:

Sum of divisors:

Prime number?

No

Fibonacci number?

No

Bell Number?

No

Catalan Number?

No

Base 2 (Binary):

Base 3 (Ternary):

Base 4 (Quaternary):

Base 5 (Quintal):

Base 8 (Octal):

Base 16 (Hexadecimal):

4c5

Base 32:

sin(1221)

0.88174196224895

cos(1221)

-0.47173203411403

tan(1221)

-1.8691585444371

ln(1221)

7.1074254741107

lg(1221)

3.0867156639449

sqrt(1221)

34.942810419312

Square(1221)

### Number Look Up

**1221**which is pronounced (one thousand two hundred twenty-one) is a very special figure. The cross sum of

**1221**is 6. If you factorisate the figure

**1221**you will get these result 3 * 11 * 37. The number

**1221**has 8 divisors ( 1, 3, 11, 33, 37, 111, 407, 1221 ) whith a sum of 1824. The number

**1221**is not a prime number.

**1221**is not a fibonacci number. The figure

**1221**is not a Bell Number. The number

**1221**is not a Catalan Number. The convertion of

**1221**to base 2 (Binary) is 10011000101. The convertion of

**1221**to base 3 (Ternary) is 1200020. The convertion of

**1221**to base 4 (Quaternary) is 103011. The convertion of

**1221**to base 5 (Quintal) is 14341. The convertion of

**1221**to base 8 (Octal) is 2305. The convertion of

**1221**to base 16 (Hexadecimal) is 4c5. The convertion of

**1221**to base 32 is 165. The sine of the figure

**1221**is 0.88174196224895. The cosine of the number

**1221**is -0.47173203411403. The tangent of the figure

**1221**is -1.8691585444371. The square root of

**1221**is 34.942810419312.

If you square

**1221**you will get the following result 1490841. The natural logarithm of

**1221**is 7.1074254741107 and the decimal logarithm is 3.0867156639449. I hope that you now know that

**1221**is impressive number!