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1120253221 is a prime number
BaseRepresentation
bin100001011000101…
…1011010100100101
32220001221202112001
41002301123110211
54243241100341
6303054525301
736521665243
oct10261332445
92801852461
101120253221
1152539890a
12273206831
1314b122439
14a8ad1793
1568536d31
hex42c5b525

1120253221 has 2 divisors, whose sum is σ = 1120253222. Its totient is φ = 1120253220.

The previous prime is 1120253219. The next prime is 1120253257. The reversal of 1120253221 is 1223520211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1120240900 + 12321 = 33470^2 + 111^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120253221 - 21 = 1120253219 is a prime.

Together with 1120253219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1120253261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560126610 + 560126611.

It is an arithmetic number, because the mean of its divisors is an integer number (560126611).

Almost surely, 21120253221 is an apocalyptic number.

It is an amenable number.

1120253221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120253221 is an equidigital number, since it uses as much as digits as its factorization.

1120253221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1120253221 is about 33470.1840598465. The cubic root of 1120253221 is about 1038.5770792672.

Adding to 1120253221 its reverse (1223520211), we get a palindrome (2343773432).

The spelling of 1120253221 in words is "one billion, one hundred twenty million, two hundred fifty-three thousand, two hundred twenty-one".