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12212104129 is a prime number
BaseRepresentation
bin10110101111110010…
…11110101111000001
31011112002020011111221
423113321132233001
5200002244313004
65335443435041
7611425113061
oct132771365701
934462204457
1012212104129
1151a7461645
122449985a81
1311c8099324
1483bc713a1
154b71bb354
hex2d7e5ebc1

12212104129 has 2 divisors, whose sum is σ = 12212104130. Its totient is φ = 12212104128.

The previous prime is 12212104109. The next prime is 12212104147. The reversal of 12212104129 is 92140121221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10702937025 + 1509167104 = 103455^2 + 38848^2 .

It is a cyclic number.

It is not a de Polignac number, because 12212104129 - 25 = 12212104097 is a prime.

It is not a weakly prime, because it can be changed into another prime (12212104109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106052064 + 6106052065.

It is an arithmetic number, because the mean of its divisors is an integer number (6106052065).

Almost surely, 212212104129 is an apocalyptic number.

It is an amenable number.

12212104129 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212104129 is an equidigital number, since it uses as much as digits as its factorization.

12212104129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 12212104129 in words is "twelve billion, two hundred twelve million, one hundred four thousand, one hundred twenty-nine".