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122220120973 is a prime number
BaseRepresentation
bin111000111010011100…
…0110000101110001101
3102200110201201102221011
41301310320300232031
54000301322332343
6132051441205221
711554504613206
oct1616470605615
9380421642834
10122220120973
1147919087945
121b82b330811
13b6aa142212
145cb61405ad
1532a4d4929d
hex1c74e30b8d

122220120973 has 2 divisors, whose sum is σ = 122220120974. Its totient is φ = 122220120972.

The previous prime is 122220120949. The next prime is 122220121033. The reversal of 122220120973 is 379021022221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122204778084 + 15342889 = 349578^2 + 3917^2 .

It is an emirp because it is prime and its reverse (379021022221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122220120973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122220123973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110060486 + 61110060487.

It is an arithmetic number, because the mean of its divisors is an integer number (61110060487).

Almost surely, 2122220120973 is an apocalyptic number.

It is an amenable number.

122220120973 is a deficient number, since it is larger than the sum of its proper divisors (1).

122220120973 is an equidigital number, since it uses as much as digits as its factorization.

122220120973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 122220120973 in words is "one hundred twenty-two billion, two hundred twenty million, one hundred twenty thousand, nine hundred seventy-three".