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1112054221 is a prime number
BaseRepresentation
bin100001001001000…
…1001100111001101
32212111112012121101
41002102021213031
54234141213341
6302203103101
736362206405
oct10222114715
92774465541
101112054221
115207a8883
12270511a91
13149511565
14a7999805
1567967831
hex424899cd

1112054221 has 2 divisors, whose sum is σ = 1112054222. Its totient is φ = 1112054220.

The previous prime is 1112054161. The next prime is 1112054267. The reversal of 1112054221 is 1224502111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1068309225 + 43744996 = 32685^2 + 6614^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112054221 - 27 = 1112054093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112054621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556027110 + 556027111.

It is an arithmetic number, because the mean of its divisors is an integer number (556027111).

Almost surely, 21112054221 is an apocalyptic number.

It is an amenable number.

1112054221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112054221 is an equidigital number, since it uses as much as digits as its factorization.

1112054221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1112054221 is about 33347.4769810251. The cubic root of 1112054221 is about 1036.0371319483.

Adding to 1112054221 its reverse (1224502111), we get a palindrome (2336556332).

It can be divided in two parts, 11120 and 54221, that added together give a triangular number (65341 = T361).

The spelling of 1112054221 in words is "one billion, one hundred twelve million, fifty-four thousand, two hundred twenty-one".