1022122291 has 2 divisors, whose sum is σ = 1022122292. Its totient is φ = 1022122290.

The previous prime is 1022122279. The next prime is 1022122327. The reversal of 1022122291 is 1922212201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1022122291 - 2¹⁹ = 1021598003 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022122201) 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, 511061145 + 511061146.

It is an arithmetic number, because the mean of its divisors is an integer number (511061146).

Almost surely, 2^1022122291 is an apocalyptic number.

1022122291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022122291 is an equidigital number, since it uses as much as digits as its factorization.

1022122291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1022122291 is about 31970.6473347038. The cubic root of 1022122291 is about 1007.3203783002.

Adding to 1022122291 its reverse (1922212201), we get a palindrome (2944334492).

The spelling of 1022122291 in words is "one billion, twenty-two million, one hundred twenty-two thousand, two hundred ninety-one".