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12201269 is a prime number
BaseRepresentation
bin101110100010…
…110100110101
3211221212222212
4232202310311
511110420034
61113303205
7205465133
oct56426465
924855885
1012201269
116983aa3
124104b05
1326b27b2
141898753
1511102ce
hexba2d35

12201269 has 2 divisors, whose sum is σ = 12201270. Its totient is φ = 12201268.

The previous prime is 12201263. The next prime is 12201283. The reversal of 12201269 is 96210221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11458225 + 743044 = 3385^2 + 862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12201269 is a prime.

It is a super-2 number, since 2×122012692 = 297741930420722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12201263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100634 + 6100635.

It is an arithmetic number, because the mean of its divisors is an integer number (6100635).

Almost surely, 212201269 is an apocalyptic number.

It is an amenable number.

12201269 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201269 is an equidigital number, since it uses as much as digits as its factorization.

12201269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 12201269 is about 3493.0314914126. The cubic root of 12201269 is about 230.2157333129.

The spelling of 12201269 in words is "twelve million, two hundred one thousand, two hundred sixty-nine".