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12122212222097 is a prime number
BaseRepresentation
bin1011000001100110110000…
…1001110100010010010001
31120220212112210221020111122
42300121230021310102101
53042102242312101342
641440511210052025
72360541501530015
oct260315411642221
946825483836448
1012122212222097
11395400185714a
12143944841a015
1369c172cc76c3
142dca0aa64545
151604d72094d2
hexb066c274491

12122212222097 has 2 divisors, whose sum is σ = 12122212222098. Its totient is φ = 12122212222096.

The previous prime is 12122212222079. The next prime is 12122212222123. The reversal of 12122212222097 is 79022221222121.

Together with previous prime (12122212222079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9824438284816 + 2297773937281 = 3134396^2 + 1515841^2 .

It is a cyclic number.

It is not a de Polignac number, because 12122212222097 - 26 = 12122212222033 is a prime.

It is not a weakly prime, because it can be changed into another prime (12122212222007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061106111048 + 6061106111049.

It is an arithmetic number, because the mean of its divisors is an integer number (6061106111049).

Almost surely, 212122212222097 is an apocalyptic number.

It is an amenable number.

12122212222097 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122212222097 is an equidigital number, since it uses as much as digits as its factorization.

12122212222097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 12122212222097 in words is "twelve trillion, one hundred twenty-two billion, two hundred twelve million, two hundred twenty-two thousand, ninety-seven".