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1222252243 is a prime number
BaseRepresentation
bin100100011011010…
…0001011011010011
310011011212211212121
41020312201123103
510000344032433
6321141035111
742200654422
oct11066413323
93134784777
101222252243
11577a25223
122a13b5a97
131662b5aa4
14b84832b9
1572483c2d
hex48da16d3

1222252243 has 2 divisors, whose sum is σ = 1222252244. Its totient is φ = 1222252242.

The previous prime is 1222252231. The next prime is 1222252279. The reversal of 1222252243 is 3422522221.

It is a weak prime.

It is an emirp because it is prime and its reverse (3422522221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222252243 - 217 = 1222121171 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222253243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611126121 + 611126122.

It is an arithmetic number, because the mean of its divisors is an integer number (611126122).

Almost surely, 21222252243 is an apocalyptic number.

1222252243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222252243 is an equidigital number, since it uses as much as digits as its factorization.

1222252243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 25.

The square root of 1222252243 is about 34960.7242916962. The cubic root of 1222252243 is about 1069.1868638065.

Adding to 1222252243 its reverse (3422522221), we get a palindrome (4644774464).

The spelling of 1222252243 in words is "one billion, two hundred twenty-two million, two hundred fifty-two thousand, two hundred forty-three".