Search a number
-
+
12222022481 is a prime number
BaseRepresentation
bin10110110000111110…
…10100001101010001
31011112202220001221022
423120133110031101
5200012314204411
65340440205225
7611605322414
oct133037241521
934482801838
1012222022481
115202016429
122451169815
1311ca15c986
1483d2d3b7b
154b7ec9edb
hex2d87d4351

12222022481 has 2 divisors, whose sum is σ = 12222022482. Its totient is φ = 12222022480.

The previous prime is 12222022471. The next prime is 12222022507. The reversal of 12222022481 is 18422022221.

12222022481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (12222022507) can be obtained adding 12222022481 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12140734225 + 81288256 = 110185^2 + 9016^2 .

It is an emirp because it is prime and its reverse (18422022221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12222022481 - 210 = 12222021457 is a prime.

It is a super-2 number, since 2×122220224812 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12222022481.

It is not a weakly prime, because it can be changed into another prime (12222022471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111011240 + 6111011241.

It is an arithmetic number, because the mean of its divisors is an integer number (6111011241).

Almost surely, 212222022481 is an apocalyptic number.

It is an amenable number.

12222022481 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222022481 is an equidigital number, since it uses as much as digits as its factorization.

12222022481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 26.

The spelling of 12222022481 in words is "twelve billion, two hundred twenty-two million, twenty-two thousand, four hundred eighty-one".