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222130669 is a prime number
BaseRepresentation
bin11010011110101…
…11000111101101
3120110222101222211
431033113013231
5423331140134
634013010421
75335036165
oct1517270755
9513871884
10222130669
11104429072
1262483a11
1337035487
14217035a5
151477b764
hexd3d71ed

222130669 has 2 divisors, whose sum is σ = 222130670. Its totient is φ = 222130668.

The previous prime is 222130651. The next prime is 222130673. The reversal of 222130669 is 966031222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192155044 + 29975625 = 13862^2 + 5475^2 .

It is a cyclic number.

It is not a de Polignac number, because 222130669 - 25 = 222130637 is a prime.

It is a super-2 number, since 2×2221306692 = 98684068220775122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222130669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222130639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111065334 + 111065335.

It is an arithmetic number, because the mean of its divisors is an integer number (111065335).

Almost surely, 2222130669 is an apocalyptic number.

It is an amenable number.

222130669 is a deficient number, since it is larger than the sum of its proper divisors (1).

222130669 is an equidigital number, since it uses as much as digits as its factorization.

222130669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 222130669 is about 14904.0487452236. The cubic root of 222130669 is about 605.6236712287.

The spelling of 222130669 in words is "two hundred twenty-two million, one hundred thirty thousand, six hundred sixty-nine".