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3221044121 is a prime number
BaseRepresentation
bin1011111111111101…
…0011101110011001
322022110221222212102
42333333103232121
523044041402441
61251342053145
7142551265121
oct27777235631
98273858772
103221044121
111403217139
1275a87a1b5
133c4429289
14227b05c81
1513cba869b
hexbffd3b99

3221044121 has 2 divisors, whose sum is σ = 3221044122. Its totient is φ = 3221044120.

The previous prime is 3221044097. The next prime is 3221044147. The reversal of 3221044121 is 1214401223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2076169225 + 1144874896 = 45565^2 + 33836^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3221044121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3221044093 and 3221044102.

It is not a weakly prime, because it can be changed into another prime (3221004121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610522060 + 1610522061.

It is an arithmetic number, because the mean of its divisors is an integer number (1610522061).

Almost surely, 23221044121 is an apocalyptic number.

It is an amenable number.

3221044121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221044121 is an equidigital number, since it uses as much as digits as its factorization.

3221044121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 3221044121 is about 56754.2431981962. The cubic root of 3221044121 is about 1476.8358442789.

Adding to 3221044121 its reverse (1214401223), we get a palindrome (4435445344).

The spelling of 3221044121 in words is "three billion, two hundred twenty-one million, forty-four thousand, one hundred twenty-one".