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3122300221 is a prime number
BaseRepresentation
bin1011101000011010…
…1000010100111101
322001121011021200221
42322012220110331
522343302101341
61233453421341
7140242054045
oct27206502475
98047137627
103122300221
111362503407
1273179a851
133a9b35431
14218960725
151341a0ed1
hexba1a853d

3122300221 has 2 divisors, whose sum is σ = 3122300222. Its totient is φ = 3122300220.

The previous prime is 3122300201. The next prime is 3122300239. The reversal of 3122300221 is 1220032213.

3122300221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2931031321 + 191268900 = 54139^2 + 13830^2 .

It is a cyclic number.

It is not a de Polignac number, because 3122300221 - 225 = 3088745789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3122300195 and 3122300204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3122300201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561150110 + 1561150111.

It is an arithmetic number, because the mean of its divisors is an integer number (1561150111).

Almost surely, 23122300221 is an apocalyptic number.

It is an amenable number.

3122300221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3122300221 is an equidigital number, since it uses as much as digits as its factorization.

3122300221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3122300221 is about 55877.5466623222. The cubic root of 3122300221 is about 1461.5877237133.

Adding to 3122300221 its reverse (1220032213), we get a palindrome (4342332434).

The spelling of 3122300221 in words is "three billion, one hundred twenty-two million, three hundred thousand, two hundred twenty-one".