Search a number
-
+
121220002207 is a prime number
BaseRepresentation
bin111000011100101000…
…1100111000110011111
3102120220000211010220101
41300321101213012133
53441224310032312
6131404313201531
711520642006103
oct1607121470637
9376800733811
10121220002207
1147455592907
121b5b04002a7
13b57ab92c75
145c1d3a1903
153247142a57
hex1c3946719f

121220002207 has 2 divisors, whose sum is σ = 121220002208. Its totient is φ = 121220002206.

The previous prime is 121220002157. The next prime is 121220002213. The reversal of 121220002207 is 702200022121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121220002207 - 235 = 86860263839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121220002807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610001103 + 60610001104.

It is an arithmetic number, because the mean of its divisors is an integer number (60610001104).

Almost surely, 2121220002207 is an apocalyptic number.

121220002207 is a deficient number, since it is larger than the sum of its proper divisors (1).

121220002207 is an equidigital number, since it uses as much as digits as its factorization.

121220002207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 19.

Adding to 121220002207 its reverse (702200022121), we get a palindrome (823420024328).

The spelling of 121220002207 in words is "one hundred twenty-one billion, two hundred twenty million, two thousand, two hundred seven".