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122221030013 is a prime number
BaseRepresentation
bin111000111010011110…
…0001110101001111101
3102200110210102121220022
41301310330032221331
54000302040430023
6132051512501525
711554515420365
oct1616474165175
9380423377808
10122221030013
1147919648915
121b82b6aa8a5
13b6aa39cc04
145cb62d99a5
1532a4e787c8
hex1c74f0ea7d

122221030013 has 2 divisors, whose sum is σ = 122221030014. Its totient is φ = 122221030012.

The previous prime is 122221030007. The next prime is 122221030037. The reversal of 122221030013 is 310030122221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107228741764 + 14992288249 = 327458^2 + 122443^2 .

It is a cyclic number.

It is not a de Polignac number, because 122221030013 - 28 = 122221029757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122221029973 and 122221030000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122221030003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110515006 + 61110515007.

It is an arithmetic number, because the mean of its divisors is an integer number (61110515007).

Almost surely, 2122221030013 is an apocalyptic number.

It is an amenable number.

122221030013 is a deficient number, since it is larger than the sum of its proper divisors (1).

122221030013 is an equidigital number, since it uses as much as digits as its factorization.

122221030013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 122221030013 its reverse (310030122221), we get a palindrome (432251152234).

The spelling of 122221030013 in words is "one hundred twenty-two billion, two hundred twenty-one million, thirty thousand, thirteen".