1022291 has 2 divisors, whose sum is σ = 1022292. Its totient is φ = 1022290.

The previous prime is 1022251. The next prime is 1022303. The reversal of 1022291 is 1922201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1022291 - 2¹⁸ = 760147 is a prime.

It is a Chen prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (1022201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511145 + 511146.

It is an arithmetic number, because the mean of its divisors is an integer number (511146).

2^1022291 is an apocalyptic number.

1022291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022291 is an equidigital number, since it uses as much as digits as its factorization.

1022291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1022291 is about 1011.0840716775. The cubic root of 1022291 is about 100.7375797195.

Adding to 1022291 its reverse (1922201), we get a palindrome (2944492).

The spelling of 1022291 in words is "one million, twenty-two thousand, two hundred ninety-one".