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1114242221 is a prime number
BaseRepresentation
bin100001001101001…
…1111110010101101
32212122122100222102
41002122133302231
54240221222341
6302322024445
736416621411
oct10232376255
92778570872
101114242221
11521a62744
122711a8125
13149ac9431
14a7da8d41
1567c4ac9b
hex4269fcad

1114242221 has 2 divisors, whose sum is σ = 1114242222. Its totient is φ = 1114242220.

The previous prime is 1114242211. The next prime is 1114242313. The reversal of 1114242221 is 1222424111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 993132196 + 121110025 = 31514^2 + 11005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1114242221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1114242193 and 1114242202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1114242211) 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, 557121110 + 557121111.

It is an arithmetic number, because the mean of its divisors is an integer number (557121111).

Almost surely, 21114242221 is an apocalyptic number.

It is an amenable number.

1114242221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1114242221 is an equidigital number, since it uses as much as digits as its factorization.

1114242221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 256, while the sum is 20.

The square root of 1114242221 is about 33380.2669402148. The cubic root of 1114242221 is about 1036.7161648368.

Adding to 1114242221 its reverse (1222424111), we get a palindrome (2336666332).

The spelling of 1114242221 in words is "one billion, one hundred fourteen million, two hundred forty-two thousand, two hundred twenty-one".