1120212281 has 2 divisors, whose sum is σ = 1120212282. Its totient is φ = 1120212280.

The previous prime is 1120212277. The next prime is 1120212299. The reversal of 1120212281 is 1822120211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1083002281 + 37210000 = 32909^2 + 6100^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120212281 - 2² = 1120212277 is a prime.

It is a super-2 number, since 2×1120212281² = 2509751109006445922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1120212581) 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, 560106140 + 560106141.

It is an arithmetic number, because the mean of its divisors is an integer number (560106141).

Almost surely, 2^1120212281 is an apocalyptic number.

It is an amenable number.

1120212281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120212281 is an equidigital number, since it uses as much as digits as its factorization.

1120212281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 1120212281 is about 33469.5724651511. The cubic root of 1120212281 is about 1038.5644274064.

Adding to 1120212281 its reverse (1822120211), we get a palindrome (2942332492).

The spelling of 1120212281 in words is "one billion, one hundred twenty million, two hundred twelve thousand, two hundred eighty-one".