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22122105697 is a prime number
BaseRepresentation
bin10100100110100101…
…001000101101100001
32010002201122102000001
4110212211020231201
5330301224340242
614055053300001
71412130536656
oct244645105541
963081572001
1022122105697
11942239648a
124354794601
132117235493
1410dc087c2d
158971eceb7
hex526948b61

22122105697 has 2 divisors, whose sum is σ = 22122105698. Its totient is φ = 22122105696.

The previous prime is 22122105667. The next prime is 22122105737. The reversal of 22122105697 is 79650122122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19891999521 + 2230106176 = 141039^2 + 47224^2 .

It is a cyclic number.

It is not a de Polignac number, because 22122105697 - 211 = 22122103649 is a prime.

It is a super-4 number, since 4×221221056974 (a number of 42 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (22122105667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061052848 + 11061052849.

It is an arithmetic number, because the mean of its divisors is an integer number (11061052849).

Almost surely, 222122105697 is an apocalyptic number.

It is an amenable number.

22122105697 is a deficient number, since it is larger than the sum of its proper divisors (1).

22122105697 is an equidigital number, since it uses as much as digits as its factorization.

22122105697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 22122105697 in words is "twenty-two billion, one hundred twenty-two million, one hundred five thousand, six hundred ninety-seven".