Search a number
-
+
122121302263 is a prime number
BaseRepresentation
bin111000110111011111…
…1110011000011110111
3102200012211202221010221
41301232333303003313
54000101023133023
6132033551155211
711552164641052
oct1615677630367
9380184687127
10122121302263
1147878322994
121b802215b07
13b6928232cc
145ca6d79a99
15329b32985d
hex1c6eff30f7

122121302263 has 2 divisors, whose sum is σ = 122121302264. Its totient is φ = 122121302262.

The previous prime is 122121302231. The next prime is 122121302291. The reversal of 122121302263 is 362203121221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122121302263 - 25 = 122121302231 is a prime.

It is a super-2 number, since 2×1221213022632 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122121302293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060651131 + 61060651132.

It is an arithmetic number, because the mean of its divisors is an integer number (61060651132).

Almost surely, 2122121302263 is an apocalyptic number.

122121302263 is a deficient number, since it is larger than the sum of its proper divisors (1).

122121302263 is an equidigital number, since it uses as much as digits as its factorization.

122121302263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 122121302263 its reverse (362203121221), we get a palindrome (484324423484).

The spelling of 122121302263 in words is "one hundred twenty-two billion, one hundred twenty-one million, three hundred two thousand, two hundred sixty-three".